John S. McCain, Sr.
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John Sidney "Slew" McCain Sr. (9 August 1884 – 6 September 1945) was a
United States Navy The United States Navy (USN) is the naval warfare, maritime military branch, service branch of the United States Department of Defense. It is the world's most powerful navy with the largest Displacement (ship), displacement, at 4.5 millio ...
admiral Admiral is one of the highest ranks in many navies. In the Commonwealth nations and the United States, a "full" admiral is equivalent to a "full" general in the army or the air force. Admiral is ranked above vice admiral and below admiral of ...
and the patriarch of the McCain military family. McCain held several commands during the
Pacific War The Pacific War, sometimes called the Asia–Pacific War or the Pacific Theatre, was the Theater (warfare), theatre of World War II fought between the Empire of Japan and the Allies of World War II, Allies in East Asia, East and Southeast As ...
of
World War II World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the wo ...
and was a pioneer of aircraft carrier operations. He and his son, John S. McCain Jr., were the first father-and-son pair to achieve four-star admiral rank in the U.S. Navy. A graduate of the
United States Naval Academy The United States Naval Academy (USNA, Navy, or Annapolis) is a United States Service academies, federal service academy in Annapolis, Maryland. It was established on 10 October 1845 during the tenure of George Bancroft as United States Secre ...
at
Annapolis, Maryland Annapolis ( ) is the capital of the U.S. state of Maryland. It is the county seat of Anne Arundel County and its only incorporated city. Situated on the Chesapeake Bay at the mouth of the Severn River, south of Baltimore and about east ...
, class of 1906, McCain's early career was on
battleship A battleship is a large, heavily naval armour, armored warship with a main battery consisting of large naval gun, guns, designed to serve as a capital ship. From their advent in the late 1880s, battleships were among the largest and most form ...
s and
cruiser A cruiser is a type of warship. Modern cruisers are generally the largest ships in a fleet after aircraft carriers and amphibious assault ships, and can usually perform several operational roles from search-and-destroy to ocean escort to sea ...
s. During
World War I World War I or the First World War (28 July 1914 – 11 November 1918), also known as the Great War, was a World war, global conflict between two coalitions: the Allies of World War I, Allies (or Entente) and the Central Powers. Fighting to ...
, he served on convoy duty in the
Atlantic The Atlantic Ocean is the second largest of the world's five oceanic divisions, with an area of about . It covers approximately 17% of Earth's surface and about 24% of its water surface area. During the Age of Discovery, it was known for se ...
. From 1918 to 1935, he alternated between duty ashore with the
Bureau of Navigation The Bureau of Navigation, later the Bureau of Navigation and Steamboat Inspection and finally the Bureau of Marine Inspection and Navigation — not to be confused with the United States Navys Bureau of Navigation — was an agency of the Unite ...
, where he developed officer personnel policies, and at sea, where he commanded the
cargo ship A cargo ship or freighter is a merchant ship that carries cargo, goods, and materials from one port to another. Thousands of cargo carriers ply the world's List of seas, seas and Ocean, oceans each year, handling the bulk of international trade. ...
and ammunition ship . He attended the
Naval War College The Naval War College (NWC or NAVWARCOL) is the staff college and "Home of Thought" for the United States Navy at Naval Station Newport in Newport, Rhode Island. The NWC educates and develops leaders, supports defining the future Navy and associa ...
in
Newport, Rhode Island Newport is a seaside city on Aquidneck Island in Rhode Island, United States. It is located in Narragansett Bay, approximately southeast of Providence, Rhode Island, Providence, south of Fall River, Massachusetts, south of Boston, and nort ...
, in 1928 and 1929. In 1935, he qualified as a
naval aviator Naval aviation / Aeronaval is the application of military air power by navies, whether from warships that embark aircraft, or land bases. It often involves '' navalised aircraft'', specifically designed for naval use. Seaborne aviation encompas ...
and commanded the
aircraft carrier An aircraft carrier is a warship that serves as a seagoing airbase, equipped with a full-length flight deck and hangar facilities for supporting, arming, deploying and recovering carrier-based aircraft, shipborne aircraft. Typically it is the ...
from 1937 to 1939. During World War II, McCain commanded land-based air operations in support of the
Guadalcanal campaign The Guadalcanal campaign, also known as the Battle of Guadalcanal and codenamed Operation Watchtower by the United States, was an Allies of World War II, Allied offensive against forces of the Empire of Japan in the Solomon Islands during th ...
. He served as Chief of the
Bureau of Aeronautics The Bureau of Aeronautics (BuAer) was the U.S. Navy's material-support organization for naval aviation from 1921 to 1959. The bureau had "cognizance" (''i.e.'', responsibility) for the design, procurement, and support of naval aircraft and rela ...
and Deputy
Chief of Naval Operations The chief of naval operations (CNO) is the highest-ranking officer of the United States Navy. The position is a statutory office () held by an Admiral (United States), admiral who is a military adviser and deputy to the United States Secretary ...
for Air. In 1944–1945, he led Task Force 38 in operations off the
Philippines The Philippines, officially the Republic of the Philippines, is an Archipelagic state, archipelagic country in Southeast Asia. Located in the western Pacific Ocean, it consists of List of islands of the Philippines, 7,641 islands, with a tot ...
and
Okinawa most commonly refers to: * Okinawa Prefecture, Japan's southernmost prefecture * Okinawa Island, the largest island of Okinawa Prefecture * Okinawa Islands, an island group including Okinawa itself * Okinawa (city), the second largest city in th ...
and air strikes against
Formosa Taiwan, officially the Republic of China (ROC), is a country in East Asia. The island of Taiwan, formerly known to Westerners as Formosa, has an area of and makes up 99% of the land under ROC control. It lies about across the Taiwan Strait f ...
and the
Japanese home islands The is an archipelago of 14,125 islands that form the country of Japan. It extends over from the Sea of Okhotsk in the northeast to the East China and Philippine seas in the southwest along the Pacific coast of the Eurasian continent, and cons ...
that caused the destruction of Japanese naval and air forces in the closing period of the war. McCain died four days after attending the formal Japanese surrender ceremony on 2 September 1945.


Early life, education, and family

John Sidney "Slew" McCain was born in Carroll County, Mississippi, on 9 August 1884, the third child and second son and namesake of plantation owner John Sidney McCain and his wife Elizabeth-Ann Young. He had an older brother, William Alexander, an older sister, Katherine Louise, and three younger siblings: Mary James, Harry Hart and Joseph Pinckney. McCain attended the
University of Mississippi The University of Mississippi (Epithet, byname Ole Miss) is a Public university, public research university in University, near Oxford, Mississippi, United States, with a University of Mississippi Medical Center, medical center in Jackson, Miss ...
for the 1901–1902 academic year, where he joined the
Phi Delta Theta Phi Delta Theta (), commonly known as Phi Delt, is an international secret and social Fraternities and sororities in North America, fraternity founded in 1848, and currently headquartered, at Miami University in Oxford, Ohio. Phi Delta Theta, alo ...
fraternity, and then decided to attend the
United States Military Academy The United States Military Academy (USMA), commonly known as West Point, is a United States service academies, United States service academy in West Point, New York that educates cadets for service as Officer_(armed_forces)#United_States, comm ...
at
West Point, New York West Point is the oldest continuously occupied military post in the United States. Located on the Hudson River in New York (state), New York, General George Washington stationed his headquarters in West Point in the summer and fall of 1779 durin ...
, where his brother William Alexander was enrolled. To practice for its entrance exams, he decided to take the ones for the
United States Naval Academy The United States Naval Academy (USNA, Navy, or Annapolis) is a United States Service academies, federal service academy in Annapolis, Maryland. It was established on 10 October 1845 during the tenure of George Bancroft as United States Secre ...
at
Annapolis, Maryland Annapolis ( ) is the capital of the U.S. state of Maryland. It is the county seat of Anne Arundel County and its only incorporated city. Situated on the Chesapeake Bay at the mouth of the Severn River, south of Baltimore and about east ...
; when he passed and earned an appointment from Senator Anselm J. McLaurin, he decided to attend there instead. On 25 September 1902, McCain entered the Naval Academy. He acquired the nickname "Slew". Each summer,
midshipmen A midshipman is an officer of the lowest rank in the Royal Navy, United States Navy, and many Commonwealth navies. Commonwealth countries which use the rank include Canada (Naval Cadet), Australia, Bangladesh, Namibia, New Zealand, South Afric ...
went on a training cruise to familiarize them with shipboard life. The 1903 cruise was on the USS ''Chesapeake'', a
barque A barque, barc, or bark is a type of sailing ship, sailing vessel with three or more mast (sailing), masts of which the fore mast, mainmast, and any additional masts are Square rig, rigged square, and only the aftmost mast (mizzen in three-maste ...
skippered by
Commander Commander (commonly abbreviated as Cmdr.) is a common naval officer rank as well as a job title in many army, armies. Commander is also used as a rank or title in other formal organizations, including several police forces. In several countri ...
William F. Halsey Sr., whose son William F. Halsey Jr., a midshipman two years ahead of McCain, was also aboard. McCain then went to New York for
Independence Day An independence day is an annual event memorialization, commemorating the anniversary of a nation's independence or Sovereign state, statehood, usually after ceasing to be a group or part of another nation or state, or after the end of a milit ...
celebrations on the
battleship A battleship is a large, heavily naval armour, armored warship with a main battery consisting of large naval gun, guns, designed to serve as a capital ship. From their advent in the late 1880s, battleships were among the largest and most form ...
and returned to Annapolis on the
sloop-of-war During the 18th and 19th centuries, a sloop-of-war was a warship of the Royal Navy with a single gun deck that carried up to 18 guns. The rating system of the Royal Navy covered all vessels with 20 or more guns; thus, the term encompassed all u ...
. The 1904 cruise was also on the ''Hartford'', with a return trip on the battleship , and the 1905 cruise on the
monitor Monitor or monitor may refer to: Places * Monitor, Alberta * Monitor, Indiana, town in the United States * Monitor, Kentucky * Monitor, Oregon, unincorporated community in the United States * Monitor, Washington * Monitor, Logan County, Wes ...
s and . McCain failed his annual physical in 1905 on account of defective hearing, but the condition was waived due to the great need for officers. McCain's academic performance was lackluster: when he graduated on 12 February 1906, he ranked 79th out of 116 in his class, and the yearbook labeled him "The skeleton in the family closet of 1906." His classmates included William L. Calhoun, Aubrey W. Fitch, Frank J. Fletcher,
Robert L. Ghormley Vice admiral (United States), Vice Admiral Robert Lee Ghormley (October 15, 1883 – June 21, 1958) was an admiral in the United States Navy who served as commander, South Pacific Area during World War II. Ghormley was long considered to be an in ...
, Isaac C. Kidd, Leigh Noyes, John H. Towers and Russell Willson.


Early career and World War I

Midshipmen were not immediately commissioned, but had to first serve a year or two at sea. McCain's first assignment, in April 1906, was the battleship , the
flagship A flagship is a vessel used by the commanding officer of a group of navy, naval ships, characteristically a flag officer entitled by custom to fly a distinguishing flag. Used more loosely, it is the lead ship in a fleet of vessels, typically ...
of the
Asiatic Fleet The United States Asiatic Fleet was a fleet of the United States Navy during much of the first half of the 20th century. Before World War II, the fleet patrolled the Philippine Islands. Much of the fleet was destroyed by the Japanese by Februar ...
, based at
Manila Bay Manila Bay (; ) is a natural harbor that serves the Port of Manila (on Luzon), in the Philippines. Strategically located around the Manila, capital city of the Philippines, Manila Bay facilitated commerce and trade between the Philippines and ...
. After five months he was transferred to the
protected cruiser Protected cruisers, a type of cruiser of the late 19th century, took their name from the armored deck, which protected vital machine-spaces from fragments released by explosive shells. Protected cruisers notably lacked a belt of armour alon ...
. Then, in January 1907, he became the executive officer of the
patrol boat A patrol boat (also referred to as a patrol craft, patrol ship, or patrol vessel) is a relatively small naval ship, naval vessel generally designed for Coastal defence and fortification, coastal defence, Border control, border security, or law ...
, under the command of
Ensign Ensign most often refers to: * Ensign (flag), a flag flown on a vessel to indicate nationality * Ensign (rank), a navy (and former army) officer rank Ensign or The Ensign may also refer to: Places * Ensign, Alberta, Alberta, Canada * Ensign, Ka ...
Chester W. Nimitz. In July, he became the engineering officer on the
destroyer In naval terminology, a destroyer is a fast, maneuverable, long-endurance warship intended to escort larger vessels in a fleet, convoy, or carrier battle group and defend them against a wide range of general threats. They were conceived i ...
. He was promoted to ensign on 18 March 1908. On 27 November 1908, he joined the battleship for the home stretch of the
Great White Fleet The Great White Fleet was the popular nickname for the group of United States Navy battleships that completed a journey around the globe from 16 December 1907, to 22 February 1909, by order of President Foreign policy of the Theodore Roosevelt ...
's world cruise from 1907 to 1909. The ''Connecticut'' sailed through the
Suez Canal The Suez Canal (; , ') is an artificial sea-level waterway in Egypt, Indo-Mediterranean, connecting the Mediterranean Sea to the Red Sea through the Isthmus of Suez and dividing Africa and Asia (and by extension, the Sinai Peninsula from the rest ...
and participated in disaster relief efforts for the
1908 Messina earthquake A devastating earthquake occurred on 28 December 1908 in Sicily and Calabria, southern Italy with a moment magnitude of 7.1 and a maximum Mercalli intensity of XI (''Extreme''). The epicentre was in the Strait of Messina which separates Sicily f ...
in Sicily before reaching
Hampton Roads Hampton Roads is a body of water in the United States that serves as a wide channel for the James River, James, Nansemond River, Nansemond, and Elizabeth River (Virginia), Elizabeth rivers between Old Point Comfort and Sewell's Point near whe ...
on 22 February 1909. He was then ordered to report to the
armored cruiser The armored cruiser was a type of warship of the late 19th and early 20th centuries. It was designed like other types of cruisers to operate as a long-range, independent warship, capable of defeating any ship apart from a pre-dreadnought battles ...
on the West Coast. McCain married Katherine Davey Vaulx, who was eight years his senior, in
Colorado Springs, Colorado Colorado Springs is the most populous city in El Paso County, Colorado, United States, and its county seat. The city had a population of 478,961 at the 2020 United States census, 2020 census, a 15.02% increase since 2010 United States Census, 2 ...
, on 9 August 1909, in a ceremony performed by Vaulx's clergyman father, James Junius Vaulx. The couple had three children: John Sidney McCain Jr., James Gordon McCain, and Catherine Vaulx McCain. In December 1909, McCain joined the crew of the armored cruiser as its engineering officer. He appeared before the examination board for promotion to the rank of
lieutenant (junior grade) Lieutenant junior grade is a junior commissioned officer rank used in a number of navies. United States Lieutenant (junior grade), commonly abbreviated as LTJG or, historically, Lt. (j.g.) (as well as variants of both abbreviations), i ...
on 2 February 1911 and was questioned about his knowledge of seamanship, navigation, gunnery, and engineering. He was promoted on 10 March, with seniority backdated to 13 February 1911. Duty afloat alternated with duty ashore, so McCain's next posting was to the
Charleston Navy Yard Charleston Naval Shipyard (formerly known as the Charleston Navy Yard) was a U.S. Navy ship building and repair facility located along the west bank of the Cooper River (South Carolina), Cooper River, in North Charleston, South Carolina and p ...
, where he was in charge of the
machinist's mate Machinist's Mate (or MM) is a List of United States Navy ratings, rating in the United States Navy's engineering community. It is non-capitalised as machinist's mate when discussing the generic rating rather than as a proper noun when discussing a ...
s school. While there, he was promoted to
lieutenant A lieutenant ( , ; abbreviated Lt., Lt, LT, Lieut and similar) is a Junior officer, junior commissioned officer rank in the armed forces of many nations, as well as fire services, emergency medical services, Security agency, security services ...
on 5 August 1912, backdated to 1 July, and he temporarily commanded the
torpedo boat A torpedo boat is a relatively small and fast naval ship designed to carry torpedoes into battle. The first designs were steam-powered craft dedicated to ramming enemy ships with explosive spar torpedoes. Later evolutions launched variants of ...
during a naval review in New York from 13 to 15 October 1912. In April 1914, he became the executive officer and engineering officer of the armored cruiser , the flagship for the Pacific Fleet. During 1914 and 1915, it patroled the Pacific coast of Mexico during the
Mexican Revolution The Mexican Revolution () was an extended sequence of armed regional conflicts in Mexico from 20 November 1910 to 1 December 1920. It has been called "the defining event of modern Mexican history". It saw the destruction of the Federal Army, its ...
. On 11 September 1915, he joined the armored cruiser as its engineering officer. The ship was placed in reserve in February 1917 but was restored to active service after the
American entry into World War I The United States entered into World War I on 6 April 1917, more than two and a half years after the war began in Europe. Apart from an Anglophile element urging early support for the United Kingdom of Great Britain and Ireland, British and an a ...
in April. He assumed the acting rank of lieutenant commander on 31 August. This became substantive on 16 January 1918, with seniority backdated to 22 September 1917. McCain and the ''San Diego'' served on
convoy A convoy is a group of vehicles, typically motor vehicles or ships, traveling together for mutual support and protection. Often, a convoy is organized with armed defensive support and can help maintain cohesion within a unit. It may also be used ...
duty in the
Atlantic Ocean The Atlantic Ocean is the second largest of the world's five borders of the oceans, oceanic divisions, with an area of about . It covers approximately 17% of Earth#Surface, Earth's surface and about 24% of its water surface area. During the ...
, escorting shipping through the first dangerous leg of their passages to Europe. Based out of Tompkinsville, New York, and
Halifax, Nova Scotia Halifax is the capital and most populous municipality of the Provinces and territories of Canada, Canadian province of Nova Scotia, and the most populous municipality in Atlantic Canada. As of 2024, it is estimated that the population of the H ...
, ''San Diego'' operated in the weather-torn,
submarine A submarine (often shortened to sub) is a watercraft capable of independent operation underwater. (It differs from a submersible, which has more limited underwater capability.) The term "submarine" is also sometimes used historically or infor ...
-infested
North Atlantic The Atlantic Ocean is the second largest of the world's five oceanic divisions, with an area of about . It covers approximately 17% of Earth's surface and about 24% of its water surface area. During the Age of Discovery, it was known for ...
. McCain left ''San Diego'' on 26 May 1918, two months before she was sunk on 19 July by a mine laid by a
U-boat U-boats are Submarine#Military, naval submarines operated by Germany, including during the World War I, First and Second World Wars. The term is an Anglicization#Loanwords, anglicized form of the German word , a shortening of (), though the G ...
, for a new assignment in the
Bureau of Navigation The Bureau of Navigation, later the Bureau of Navigation and Steamboat Inspection and finally the Bureau of Marine Inspection and Navigation — not to be confused with the United States Navys Bureau of Navigation — was an agency of the Unite ...
in Washington, D.C., dealing with the assignment of naval personnel, with the rank of commander from 28 May.


Interwar period


Battleships and the Bureau of Navigation

The Bureau of Navigation handled the assignment, classification and promotion of naval personnel. McCain had to deal with both the wartime expansion of the Navy to 31,194 officers and 495,662 men in 1918, and its post-war demobilization that reduced the Navy to 10,109 officers and 108,950 enlisted personnel in 1920. The Bureau of Navigation sought to retain personnel with valuable skills in the regular service where possible. He served on a board that drafted regulations and legislation for such transfers, and published an article in the US Naval Institute ''Proceedings'' on the wartime "hump" of officers and the system of promotion based on seniority. In addition to professional articles in the ''Proceedings'', during the inter-war years, McCain was a would-be author who wrote fiction that was never published, including some adventure stories under the name Casper Clubfoot. In one story, ''The Rout of the Red Mayor'', the heroes of the story were the
Ku Klux Klan The Ku Klux Klan (), commonly shortened to KKK or Klan, is an American Protestant-led Christian terrorism, Christian extremist, white supremacist, Right-wing terrorism, far-right hate group. It was founded in 1865 during Reconstruction era, ...
. McCain joined the newly-commissioned battleship as its
navigator A navigator is the person on board a ship or aircraft responsible for its navigation.Grierson, MikeAviation History—Demise of the Flight Navigator FrancoFlyers.org website, October 14, 2008. Retrieved August 31, 2014. The navigator's prim ...
while it was still fitting out at
Newport News Shipbuilding Newport News Shipbuilding (NNS), a division of Huntington Ingalls Industries, is the sole designer, builder, and refueler of aircraft carriers and one of two providers of submarines for the United States Navy. Founded as the Chesapeake Dry Dock ...
in June 1921. He returned to the Bureau of Navigation in April 1923, working in the office of officer personnel, whose director was Captain
William D. Leahy William Daniel Leahy ( ; 6 May 1875 – 20 July 1959) was an American naval officer and was the most senior United States military officer on active duty during World War II; he held several titles and exercised considerable influence over for ...
. McCain participated in another board, drafting legislation of an Equalization Bill that sought to provide officers in specialist staff corps with the same promotion opportunities as line officers. The bill was eventually signed into law on 10 June 1926. He also convinced the General Board of the merits of raising the number of years of service for captains before mandatory retirement by a year. On 6 October 1925, McCain was called before a board of inquiry headed by businessman
Dwight Morrow Dwight Whitney Morrow (January 11, 1873October 5, 1931) was an American businessman, diplomat, and politician, best known as the U.S. ambassador who improved U.S.–Mexico relations, mediating the religious conflict in Mexico known as the Crister ...
into the crash of the
airship An airship, dirigible balloon or dirigible is a type of aerostat (lighter-than-air) aircraft that can navigate through the air flying powered aircraft, under its own power. Aerostats use buoyancy from a lifting gas that is less dense than the ...
. McCain was asked whether aviators should be a separate corps. McCain supported the position of the Bureau of Navigation and
Bureau of Aeronautics The Bureau of Aeronautics (BuAer) was the U.S. Navy's material-support organization for naval aviation from 1921 to 1959. The bureau had "cognizance" (''i.e.'', responsibility) for the design, procurement, and support of naval aircraft and rela ...
that aviators should remain line officers, and therefore eligible to command ships, but he acknowledged that they had to forgo flight pay during service at sea in non-aviation positions. McCain returned to sea duty in April 1926 to assume command of the
cargo ship A cargo ship or freighter is a merchant ship that carries cargo, goods, and materials from one port to another. Thousands of cargo carriers ply the world's List of seas, seas and Ocean, oceans each year, handling the bulk of international trade. ...
. In August he became the executive officer of the battleship , which was commanded by Leahy. McCain submitted a request for flight training in January 1928, but although he passed the physical examination, he was rejected because he exceeded the Bureau of Navigation's age limits for aviator training. In February 1928, McCain entered the
Naval War College The Naval War College (NWC or NAVWARCOL) is the staff college and "Home of Thought" for the United States Navy at Naval Station Newport in Newport, Rhode Island. The NWC educates and develops leaders, supports defining the future Navy and associa ...
in
Newport, Rhode Island Newport is a seaside city on Aquidneck Island in Rhode Island, United States. It is located in Narragansett Bay, approximately southeast of Providence, Rhode Island, Providence, south of Fall River, Massachusetts, south of Boston, and nort ...
. His 47 classmates included future admirals H. Kent Hewitt, Alan G. Kirk and Jesse B. Oldendorf. Students studied the works of
Alfred Thayer Mahan Alfred Thayer Mahan (; September 27, 1840 – December 1, 1914) was a United States Navy officer and historian whom John Keegan called "the most important American strategist of the nineteenth century." His 1890 book '' The Influence of Sea Pow ...
, Julian Corbett and
Herbert Richmond Admiral Sir Herbert William Richmond, (15 September 1871 – 15 December 1946) was a prominent Royal Navy officer, described as "perhaps the most brilliant naval officer of his generation." He was also a top naval historian, known as the "Br ...
, with an emphasis on major naval actions like the
Battle of Trafalgar The Battle of Trafalgar was a naval engagement that took place on 21 October 1805 between the Royal Navy and a combined fleet of the French Navy, French and Spanish Navy, Spanish navies during the War of the Third Coalition. As part of Na ...
,
Battle of Tsushima The Battle of Tsushima (, ''Tsusimskoye srazheniye''), also known in Japan as the , was the final naval battle of the Russo-Japanese War, fought on 27–28 May 1905 in the Tsushima Strait. A devastating defeat for the Imperial Russian Navy, the ...
and the
Battle of Jutland The Battle of Jutland () was a naval battle between Britain's Royal Navy Grand Fleet, under Admiral John Jellicoe, 1st Earl Jellicoe, Sir John Jellicoe, and the Imperial German Navy's High Seas Fleet, under Vice-Admiral Reinhard Scheer, durin ...
. McCain wrote theses on the "Causes of the Spanish American War, and the Naval and Combined Operations in the Atlantic, Including the Transfer of the Oregon" and "Foreign Policies of the United States". On graduation in June 1929, he returned to the Bureau of Navigation, before assuming command of the ammunition ship on 9 June 1931. He was promoted to the temporary rank of captain on 25 September. This became substantive in June 1932, and with seniority backdated to 30 June 1931. He left ''Nitro'' on 1 April 1933 and returned to the Bureau of Navigation for his third and final tour of duty there. This time he worked on legislation to provide sailors for new ships authorized under the 1934 Vinson-Trammell Act.


Naval aviation

The Vinson-Trammell Act opened up another opportunity for flight training. Only
naval aviators A navy, naval force, military maritime fleet, war navy, or maritime force is the branch of a nation's armed forces principally designated for naval and amphibious warfare; namely, lake-borne, riverine, littoral, or ocean-borne combat operation ...
and observers could command
aircraft carrier An aircraft carrier is a warship that serves as a seagoing airbase, equipped with a full-length flight deck and hangar facilities for supporting, arming, deploying and recovering carrier-based aircraft, shipborne aircraft. Typically it is the ...
s, aviation shore establishments or air units, but the expansion of the fleet authorized by the act created a shortage of aviators qualified for senior command positions. Leahy was now Chief of the Bureau of Navigation, and he waived the age requirement in McCain's case. McCain's request also received the endorsement of the Chief of the Bureau of Aeronautics, Rear Admiral Ernest J. King, who had completed flight training in 1927. McCain passed the physical; he now required a full set of
dentures Dentures (also known as false teeth) are prosthetic devices constructed to replace missing teeth, supported by the surrounding soft and hard tissues of the oral cavity. Conventional dentures are removable ( removable partial denture or comp ...
but otherwise was considered fully fit and teeth were not a requirement. On 20 June 1935, McCain reported to
Naval Air Station Pensacola Naval Air Station Pensacola or NAS Pensacola (formerly NAS/KNAS until changed circa 1970 to allow Nassau International Airport, now Lynden Pindling International Airport, to have IATA code NAS), "The Cradle of Naval Aviation", is a United Sta ...
for flight training. Training was conducted on the old Consolidated NY-1 and the new Stearman NS-1 biplanes. The training consisted of 465 hours of classroom instruction in
aerial navigation The basic principles of air navigation are identical to general navigation, which includes the process of planning, recording, and controlling the movement of a craft from one place to another. Successful air navigation involves piloting an airc ...
,
aerodynamics Aerodynamics () is the study of the motion of atmosphere of Earth, air, particularly when affected by a solid object, such as an airplane wing. It involves topics covered in the field of fluid dynamics and its subfield of gas dynamics, and is an ...
, aerology,
aircraft engine An aircraft engine, often referred to as an aero engine, is the power component of an aircraft propulsion system. Aircraft using power components are referred to as powered flight. Most aircraft engines are either piston engines or gas turbin ...
s, aerial gunnery and communications, and 282.75 hours of flight time that included some night flying. On 18 April 1936, McCain was detached from flight training and went to
Naval Air Station North Island Naval Air Station North Island or NAS North Island , at the north end of the Coronado peninsula on San Diego Bay in San Diego, California, is part of the largest aerospace-industrial complex in the United States Navy – Naval Base Coronado (N ...
in San Diego, where he reported to the aircraft carrier , which was commanded by Annapolis classmate Captain Aubrey Fitch. Over the following weeks McCain was an observer of war games that simulated an attack on the
Panama Canal The Panama Canal () is an artificial waterway in Panama that connects the Caribbean Sea with the Pacific Ocean. It cuts across the narrowest point of the Isthmus of Panama, and is a Channel (geography), conduit for maritime trade between th ...
. At the conclusion, he returned to San Diego on the aircraft carrier , and then resumed his aviation training at Pensacola. McCain took his
first solo flight A first solo flight is when a student aircraft pilot completes a short flight, including a takeoff and landing, without an instructor aboard. Achieving this milestone is known as soloing. In a more general sense, a "solo flight" or "solo time" ref ...
on 26 July and, on 24 August, at the age of 52, was awarded his wings and became Naval Aviator No. 4280. He was the second-oldest aviator to earn his wings at Pensacola, after William F. Halsey Jr., who had graduated the year before. His flight training continued until 10 September, by which time he had completed 325 flights totaling nearly 289 hours. McCain hoped for command of an aircraft carrier, but his first aviation posting was to
Coco Solo Coco Solo was a United States Navy submarine base and naval air station near the Panama Canal, active from 1918 to the 1960s. History The submarine base at Coco Solo was established May 6, 1918. The site corresponds with modern-day Cativá i ...
in the
Panama Canal Zone The Panama Canal Zone (), also known as just the Canal Zone, was a International zone#Concessions, concession of the United States located in the Isthmus of Panama that existed from 1903 to 1979. It consisted of the Panama Canal and an area gene ...
. Exercises were conducted under King's watchful eye. On 7 April 1937, McCain received orders to assume command of the ''Ranger''. He joined the ship in San Francisco on 1 June, and four days later hoisted his flag, relieving Captain Patrick N. L. Bellinger. Bellinger's executive officer, Commander Alfred E. Montgomery, stayed on as his executive officer. The embarked air group consisted of four squadrons: VF-4, equipped with Grumman F3F fighters; VB-4, with Great Lakes BG dive bombers; and VS-41 and VS-42, with Vought SBU Corsair scout-bombers. In September, the ''Ranger'' made a goodwill tour to Peru, where McCain was awarded the
Order of the Sun of Peru The Order of the Sun of Peru (Spanish: ''Orden El Sol del Perú''), formerly known as the Order of the Sun, is the highest award bestowed by the nation of Peru to commend notable civil and military merit. The award is the oldest civilian award in ...
and the Peruvian Aviation Cross. After an overhaul at the
Puget Sound Naval Shipyard Puget Sound Naval Shipyard, officially Puget Sound Naval Shipyard and Intermediate Maintenance Facility (PSNS & IMF), is a United States Navy shipyard covering 179 acres (0.7 km2) on Puget Sound at Bremerton, Washington in uninterrupted ...
from 27 October 1937 to 28 January 1938, the ''Ranger'' participated in Fleet Problem XIX in April and May 1938, which simulated an attack on Hawaii, and Fleet Problem XX in the Caribbean in February 1939, again overseen by King, who flew his flag on the ''Ranger'' in the final stages of the exercise. Based on his experience in command, McCain became an advocate of the armoured flight deck, which no American carrier possessed at that time. On 1 July 1939, McCain assumed command of Naval Air Station North Island, the only one of its kind on the West Coast until Naval Air Station Alameda became operational on 1 November 1940. McCain helped Alameda become established, providing assistance in the form of personnel, equipment and expertise. He became eligible for promotion to rear admiral in 1939, but was passed over. He felt that his work on legislation for the Bureau of Navigation had not received the recognition that it deserved, and took steps to correct the record. He enlisted the support of King and retired Rear Admiral Richard H. Leigh. His promotion was approved by President
Franklin D. Roosevelt Franklin Delano Roosevelt (January 30, 1882April 12, 1945), also known as FDR, was the 32nd president of the United States, serving from 1933 until his death in 1945. He is the longest-serving U.S. president, and the only one to have served ...
on 23 January 1941. Upon his promotion, McCain assumed command of Aircraft, Scouting Force. In this role he was responsible for the land-based aircraft, and was concurrently Commander, Patrol Wings, United States Fleet. He was impressed with the capabilities of the
Consolidated PBY Catalina The Consolidated Model 28, more commonly known as the PBY Catalina (U.S. Navy designation), is a flying boat and amphibious aircraft designed by Consolidated Aircraft in the 1930s and 1940s. In U.S. Army service, it was designated as the OA- ...
, but was aware of its limitations. While he advocated an offensive role for the aircraft, he knew that they were too vulnerable to attack shipping in daylight. He therefore prodded the
Bureau of Ordnance The Bureau of Ordnance (BuOrd) was a United States Navy organization, which was responsible for the procurement, storage, and deployment of all naval weapons, between the years 1862 and 1959. History The Bureau of Ordnance was established as part ...
to modify the Mark 13 torpedo so that it could be released from an altitude of , thereby reducing the risk of aircraft crashing into the sea at night. Even after modification, the torpedoes were plagued with reliability problems that were not resolved until 1944. By then, a series of changes had been made that allowed the torpedoes to be dropped from at a speed of , which greatly enhanced the chance of the torpedo bomber surviving the attack.


World War II

The Japanese
attack on Pearl Harbor The attack on Pearl HarborAlso known as the Battle of Pearl Harbor was a surprise military strike by the Empire of Japan on the United States Pacific Fleet at Naval Station Pearl Harbor, its naval base at Pearl Harbor on Oahu, Territory of ...
on 7 December 1941 brought the United States into
World War II World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the wo ...
. Of the 54 patrol planes based there, only one was undamaged. McCain deployed his patrol planes to warn against attacks by Japanese submarines or aircraft carriers or an invasion of Hawaii or California. His command was redesignated Patrol Wings, Pacific Fleet, on 10 April, and was transferred from the control of the Western Sea Frontier to Admiral Chester W. Nimitz's Pacific Fleet.


Guadalcanal campaign

On 1 May 1942, McCain was appointed Commander, Aircraft,
South Pacific Area The South Pacific Area (SOPAC) was a multinational U.S.-led military command active during World War II. It was a part of the U.S. Pacific Ocean Areas under Admiral Chester Nimitz. The delineation and establishment of the Pacific Ocean Areas wa ...
. As such, he commanded land-based Allied air operations supporting the
Guadalcanal campaign The Guadalcanal campaign, also known as the Battle of Guadalcanal and codenamed Operation Watchtower by the United States, was an Allies of World War II, Allied offensive against forces of the Empire of Japan in the Solomon Islands during th ...
in the
Solomon Islands Solomon Islands, also known simply as the Solomons,John Prados, ''Islands of Destiny'', Dutton Caliber, 2012, p,20 and passim is an island country consisting of six major islands and over 1000 smaller islands in Melanesia, part of Oceania, t ...
. He hoisted his flag on the
seaplane tender A seaplane tender is a boat or ship that supports the operation of seaplanes. Some of these vessels, known as seaplane carriers, could not only carry seaplanes but also provided all the facilities needed for their operation; these ships are rega ...
in Noumea on 20 May; it was replaced by the in June. His immediate task was developing air bases to support his patrol planes and heavy bombers. Aircraft carriers were available for the landings on Tulagi and Guadalcanal on 7 August, but only for the first two days. McCain's aircraft then had to provide air support until the
airfield An aerodrome, airfield, or airstrip is a location from which aircraft flight operations take place, regardless of whether they involve air cargo, passengers, or neither, and regardless of whether it is for public or private use. Aerodromes in ...
on Guadalcanal could be made operational. However, his fighters based on
Efate Efate (), also known as Île Vate (), is an island in the Pacific Ocean which is part of the Shefa Province in Vanuatu. Geography It is the most populous (approx. 66,000) island in Vanuatu. Efate's land area of makes it Vanuatu's third larg ...
did not have the range to reach Guadalcanal without
drop tank In aviation, a drop tank (external tank, wing tank or belly tank) is used to describe auxiliary fuel tanks externally carried by aircraft. A drop tank is expendable and often capable of being jettisoned. External tanks are commonplace on modern ...
s, which were in short supply. He gave a high priority to completion of a new airfield on
Espiritu Santo Espiritu Santo (, ; ) is the largest island in the nation of Vanuatu, with an area of and a population of around 40,000 according to the 2009 census. Geography The island belongs to the archipelago of the New Hebrides in the Pacific region ...
. A fighter squadron arrived on 28 July and first
Boeing B-17 Flying Fortress The Boeing B-17 Flying Fortress is an American four-engined heavy bomber aircraft developed in the 1930s for the United States Army Air Corps (USAAC). A fast and high-flying bomber, the B-17 dropped more bombs than any other aircraft during ...
landed on the newly-completed airfield the next day. In the
Battle of Savo Island The Battle of Savo Island, also known as the First Battle of Savo Island and in Japanese sources as the , and colloquially among Allied Guadalcanal veterans as the Battle of the Five Sitting Ducks, was a Naval warfare, naval battle during the So ...
on 8 August, a Japanese cruiser force attacked the Allied one screening the landing, sinking one Australian and three American cruisers, while suffering only light damage in return. It was the Navy's second greatest defeat, exceeded only by Pearl Harbor. Admiral Arthur J. Hepburn, a former commander in chief, United States Fleet, and the chairman of the General Board, conducted an investigation into the circumstances. In his report, Hepburn noted that there was a twilight zone between "culpable inefficiency on the one hand and more or less excusable error of judgment on the other". He ascribed the defeat to the Allied force being surprised. While not specifically blaming McCain, Hepburn attributed this to the failure of air patrols to detect the approach of the Japanese force. In his endorsement of Hepburn's report, Nimitz concurred that one of the causes of the disaster was the "failure of either carrier or land-based air to conduct effective search and lack of coordination of searches." In the aftermath of the disaster, the commander of the South Pacific Area, Vice Admiral
Robert L. Ghormley Vice admiral (United States), Vice Admiral Robert Lee Ghormley (October 15, 1883 – June 21, 1958) was an admiral in the United States Navy who served as commander, South Pacific Area during World War II. Ghormley was long considered to be an in ...
, ordered McCain to withdraw the seaplane tenders and from
Malaita Malaita is the primary island of Malaita Province in Solomon Islands. Malaita is the most populous island of the Solomon Islands, with a population of 161,832 as of 2021, or more than a third of the entire national population. It is also the se ...
and Ndeni respectively, which he regarded as now too vulnerable. This disrupted the search plan and forced McCain to deploy his PBY patrol planes from Espiritu Santo and a new base McCain established at
Vanikoro Vanikoro (sometimes wrongly named ''Vanikolo'') is an island in the Santa Cruz Islands, Santa Cruz group, located to the Southeast of the main Santa Cruz group. It is part of the Temotu Province of Solomon Islands. The name ''Vanikoro'' is alway ...
in the
Santa Cruz Islands The Santa Cruz Islands form an archipelago in Temotu Province, Solomon Islands. They lie approximately to the southeast of the Solomon Islands (archipelago), Solomon Islands archipelago, just north of the archipelago of Vanuatu and are con ...
. The airfield on Guadalcanal, which the
1st Marine Division The 1st Marine Division (1st MARDIV) is a Marine (military), Marine Division (military), division of the United States Marine Corps headquartered at Marine Corps Base Camp Pendleton, California. It is the ground combat element of the I Marine E ...
's commander, Major General Alexander A. Vandegrift, named Henderson Field after Major Lofton R. Henderson, a marine aviator who had been killed in the
Battle of Midway The Battle of Midway was a major naval battle in the Pacific Ocean theater of World War II, Pacific Theater of World War II that took place on 4–7 June 1942, six months after Japan's attack on Pearl Harbor and one month after the Battle of t ...
, was considered operational on 12 August. The following day, the
escort carrier The escort carrier or escort aircraft carrier (U.S. hull classification symbol CVE), also called a "jeep carrier" or "baby flattop" in the United States Navy (USN) or "Woolworth Carrier" by the Royal Navy, was a small and slower type of aircraf ...
arrived at
Suva Suva (, ) is the Capital city, capital and the most populous city of Fiji. It is the home of the country's largest metropolitan area and serves as its major port. The city is located on the southeast coast of the island of Viti Levu, in Rew ...
with 18
F4F Wildcat The Grumman F4F Wildcat is an American Carrier-based aircraft, carrier-based fighter aircraft that entered service in 1940 with the United States Navy, and the British Royal Navy where it was initially known as the Martlet. First used by the B ...
fighters and 12 SBD Dauntless dive bombers. The ship's captain asserted that the marine fighter pilots were not sufficiently trained to take off from the carrier, so McCain swapped eight of them with more experienced aviators from Efate. They arrived on Guadalcanal on 20 August, and became the nucleus of what became the Cactus Air Force. McCain seized every opportunity to reinforce the Cactus Air Force. He sent Army Bell P-400 Airacobra fighters, and retained 11 SBDs from the aircraft carrier that landed on Henderson Field after the ''Enterprise'' was damaged in the
Battle of the Eastern Solomons The naval Battle of the Eastern Solomons (also known as the Battle of the Stewart Islands and in Japanese sources as the Second Battle of the Solomon Sea) took place on 24–25 August 1942 and was the third carrier battle of the Pacific campa ...
. But aircraft were lost at alarming rates. Nimitz was not satisfied with McCain's performance and resolved to relieve him of his command. Meanwhile, in Washington, DC, Admiral Ernest J. King, who was now the Commander in Chief US Fleet, had clashed with the chief of the Bureau of Aeronautics, Rear Admiral John H. Towers, over King's plans to reorganise the Navy Department, which involved asserting more control over the bureaus. King and Nimitz met in San Francisco on 6 and 7 September 1942, and agreed on new command arrangements: Towers would be promoted to vice admiral and sent to Nimitz as Commander Naval Air Force, Pacific Fleet; the incumbent, Rear Admiral Aubrey W. Fitch, would replace McCain as Commander, Aircraft, South Pacific Area; and McCain would succeed Towers as chief of the Bureau of Aeronautics. McCain was awarded the
Navy Distinguished Service Medal The Navy Distinguished Service Medal is a military decoration of the United States Navy and United States Marine Corps which was first created in 1919 and is presented to Sailors and Marines to recognize distinguished and exceptionally meritorio ...
for his part in "the occupation of the Guadalcanal-Tulagi area by our forces and the destruction and serious damaging of numerous aircraft and vessels of the enemy".


Bureau of Aeronautics

Fitch relieved McCain on 21 September. ''Time'' magazine opined that "it was a promotion for Admiral Towers but a demotion for the Navy's air arm... New BuAer Chief Rear Admiral John Sidney McCain, 58, is a good officer. But like many other so-called air admirals, he got an airman's rating late, is not an airman by profession, but a battleship admiral with pay-and-a-half and a flying suit." His son Gordon wrote a rebuttal letter to ''Time'', pointing out that while McCain "has had no armchair or laboratory contact with 'air developments' he has had considerable peacetime and some combat flying experience." In a letter to Nimitz, the
Secretary of the Navy The Secretary of the Navy (SECNAV) is a statutory officer () and the head (chief executive officer) of the Department of the Navy, a military department within the United States Department of Defense. On March 25, 2025, John Phelan was confirm ...
,
Frank Knox William Franklin Knox (January 1, 1874 – April 28, 1944) was an American politician, soldier, newspaper editor, and publisher. He was the Republican vice presidential candidate in 1936 and Secretary of the Navy under Franklin D. Roosevelt d ...
, also defended the appointment. "Towers," he wrote, "while able, is not a good administrator or coordinator. I think McCain is both." McCain inherited from Towers an organization still in the throes of a massive wartime expansion. There were 1,098 officers on duty in the Bureau of Aeronautics in December 1942, up from 58 three years before. His first priority was to meet the needs for aircraft in the South Pacific, where they were being shot down and written off faster than they could be delivered. The Navy had 2,172 aircraft in June 1940; by the end of 1942 it had 7,058. The
War Production Board The War Production Board (WPB) was an agency of the United States government that supervised war production during World War II. President Franklin D. Roosevelt established it in January 1942, with Executive Order 9024. The WPB replaced the Su ...
had set a target of 107,000 aircraft to be delivered in 1943, of which the Navy was to receive 24,116. The Bureau of Aeronautics estimated that only 17,000 would be delivered, but that was still twice as many as had been delivered in 1942. On 13 December 1942, Knox issued a directive that authorized the technical bureaus "to negotiate, prepare, and execute their own contracts." Henceforth, the Bureau of Aeronautics procured major aeronautical items like air frames and engines. To administer procurement, McCain created Contracts, Contracts Administration, and Records and Distribution sections within the Procurement Branch of Bureau of Aeronautics's Material Division. Training the required personnel was another challenge. On 8 April 1943, the Bureau of Aeronautics estimated that 35,495 pilots would be needed in 1943 but only 30,500 would be available. An important aspect of the Bureau of Aeronautics's work was the development of requirements for new aircraft in response to lessons learned in combat. Like many personnel who had served on Guadalcanal, McCain's sleep had been interrupted by Washing Machine Charlie, Japanese aircraft that had conducted nocturnal operations over the island. In June 1943, Marine aviators returning to the UK reported that the British believed that a twin-engine
night fighter A night fighter (later known as all-weather fighter or all-weather interceptor post-Second World War) is a largely historical term for a fighter aircraft, fighter or interceptor aircraft adapted or designed for effective use at night, during pe ...
was required. The result was the development of the Grumman F7F Tigercat. As an interim measure, the Bureau of Aeronautics fitted
Vought F4U Corsair The Vought F4U Corsair is an American fighter aircraft that saw service primarily in World War II and the Korean War. Designed and initially manufactured by Vought, Chance Vought, the Corsair was soon in great demand; additional production con ...
and
Grumman F6F Hellcat The Grumman F6F Hellcat is an American Carrier-based aircraft, carrier-based fighter aircraft of World War II. Designed to replace the earlier Grumman F4F Wildcat, F4F Wildcat and to counter the Japanese Mitsubishi A6M Zero, it was the United St ...
fighters as night fighters. McCain also believed that these fighters could serve as bombers and had them modified to carry bombs and rockets. He also took steps to develop jet aircraft, starting with the
Ryan FR Fireball The Ryan FR Fireball is an American mixed-power (Reciprocating engine, piston and jet aircraft, jet-powered) fighter aircraft designed by Ryan Aeronautical for the United States Navy during World War II. It was the Navy's first aircraft with a ...
. In May 1943, King made another attempt to reorganize the Navy Department to bring more of it under his own control. He proposed to do so by creating four Deputy Chiefs of Naval Operations. This did not meet with approval from Roosevelt, but the creation of a Deputy Chief of Naval Operations for Air was authorized. McCain was chosen for the position, with the rank of vice admiral from 28 July. The Bureau of Aeronautics's Planning, Personnel, Training, and Flight Divisions were transferred to the new office. Rear Admiral DeWitt Clinton Ramsey succeeded McCain as Chief of the Bureau of Aeronautics.


Marianas and Philippines

By March 1944, McCain was aware that he was in line to command an aircraft carrier task force. He approached Commander John S. Thach and asked him to become his operations officer. Thach accepted, and McCain arranged for both to be attached to the Fifth Fleet on temporary duty. From 26 May to 21 June, McCain was on board the cruiser , the flagship of the fleet commander, Admiral Raymond A. Spruance, whence he was able to observe the invasion of Saipan and the
Battle of the Philippine Sea The Battle of the Philippine Sea was a major naval battle of World War II on 19–20 June 1944 that eliminated the Imperial Japanese Navy's ability to conduct large-scale carrier actions. It took place during the United States' amphibious r ...
. At this stage of the war, the fleet was divided into
task forces A task force (TF) is a Military organization, unit or formation established to work on a single defined task or activity. Originally introduced by the United States Navy, the term has now caught on for general usage and is a standard part of NA ...
, which in turn were divided into two to five task groups. Each aircraft carrier task group consisted of four or five aircraft carriers, along with their destroyer, cruiser and battleship escorts. Next, McCain transferred to the aircraft carrier , where he understudied Vice Admiral
Marc Mitscher Marc Andrew "Pete" Mitscher (January 26, 1887 – February 3, 1947) was a pioneer in naval aviation who became an admiral in the United States Navy, and served as commander of the Fast Carrier Task Force in the Pacific during World War II. E ...
, the commander of the First Fast Carrier Task Force Pacific, also known as
Task Force 58 The Fast Carrier Task Force (TF 38 when assigned to Third Fleet, TF 58 when assigned to Fifth Fleet) was a group of ships in World War II. It was the main striking force of the United States Navy in the Pacific War from January 1944 through th ...
, while Thach worked with Mitscher's operations officer, Captain
Arleigh Burke Arleigh Albert Burke (October 19, 1901 – January 1, 1996) was an Admiral (United States), admiral of the United States Navy who distinguished himself during World War II and the Korean War, and who served as Chief of Naval Operations during th ...
. Finally, from 24 to 26 June, McCain was an observer with Rear Admiral John W. Reeves Jr.'s Task Group 58.3. After Task Force 58 returned to
Eniwetok Enewetak Atoll (; also spelled Eniwetok Atoll or sometimes Eniewetok; , , or , ; known to the Japanese as Brown Atoll or Brown Island; ) is a large coral atoll of 40 islands in the Pacific Ocean and with its 296 people (as of 2021) forms a legi ...
, McCain flew to the United States on 3 July and was back in Washington, DC, three days later. He handed over the position of the Deputy Chief of Naval Operations for Air to Fitch on 1 August. Instead of McCain taking charge of the First Fast Carrier Task Force Pacific as he expected, Mitscher stayed on, and McCain was nominally given command of the Second Fast Carrier Task Force Pacific. Under a new organization implemented by Nimitz, there would be two fleets. They would consist of the same ships, but there would be two fleet commanders, Halsey and Spruance. When Halsey was in charge, the fleet would be called the Third Fleet; when Spruance was in charge, it would be called the Fifth Fleet. While one commanded at sea, the other would plan the next operation. McCain would have liked to have taken Mitscher's experienced staff, but under this dual-command arrangement he was compelled to select a new one. For his chief of staff, he chose Rear Admiral Wilder D. Baker. As a learning exercise, McCain took over Task Group 58.1 from Rear Admiral Joseph J. Clark. This was awkward, as McCain was senior to Mitscher. Task Group 58.1 comprised the aircraft carriers and , the light carriers and , the cruisers , and , and eleven destroyers. McCain hoisted his flag on the ''Wasp'' on 18 August. Clark remained on board to advise McCain until the end of September. When Admiral William F. Halsey Jr. assumed command of the fleet from Spruance on 26 August, the fleet became the Third Fleet and Task Group 58.1 became Task Group 38.1. Task Group 38.1 sortied from Eniwetok on 29 August 1944. McCain conducted a series of air strikes on targets in the
Caroline Islands The Caroline Islands (or the Carolines) are a widely scattered archipelago of tiny islands in the western Pacific Ocean, to the north of New Guinea. Politically, they are divided between the Federated States of Micronesia (FSM) in the cen ...
and Philippines in support of the landings on
Peleliu Peleliu (or Beliliou) is an island in the island nation of Palau. Peleliu, along with two small islands to its northeast, forms one of the sixteen states of Palau. The island is notable as the location of the Battle of Peleliu in World War II. ...
and Morotai. In his report on the operations, McCain recommended that the number of fighters aboard his s be increased, as in the future they would be often operating in range of large numbers of land-based aircraft. King authorized an increase in their fighter strength from 36 to 54, with a corresponding reduction in the number of
Curtiss SB2C Helldiver The Curtiss SB2C Helldiver was a dive bomber developed by Curtiss-Wright during World War II. As a carrier-based bomber with the United States Navy (USN), in Pacific theaters, it supplemented and replaced the Douglas SBD Dauntless. A few su ...
dive bombers being carried. After revictualing at
Manus Island Manus Island is part of Manus Province in northern Papua New Guinea and is the largest of the Admiralty Islands. It is the fifth-largest island in Papua New Guinea, with an area of , measuring around . Manus Island is covered in rugged jungles w ...
, Task Group 38.1 sortied again on 2 October, this time in support of the landing on Leyte. McCain conducted a series of strikes against airfields on Formosa, which precipitated the
Formosa Air Battle The Formosa Air Battle (, ), 12–16 October 1944, was a series of large-scale aerial engagements between carrier air groups of the United States Navy Fast Carrier Task Force (TF38) and Japanese land-based air forces of the Imperial Japanese Nav ...
. On the night of 12 October, Task Group 38.1 was attacked by fourteen Japanese aircraft, all of which were shot down by anti-aircraft guns and night fighters. At 18:23 on the following evening, there was another attack by ten torpedo bombers that were not picked up on radar. ''Canberra'' was torpedoed and ''Wasp'' suffered minor damage when one of the bombers crashed off the starboard bow. McCain had ''Wichita'' take ''Canberra'' in tow, and had his carriers provide protective air cover. The Japanese attacked again at dusk the next evening, and torpedoed the , which had been sent to augment McCain's screen. On 15 October, Task Group 38.1 came under relentless attack by an estimated 80 aircraft, of which 52 were claimed to have been shot down. Two American fighters were lost, but the cruisers were saved. McCain was awarded the
Navy Cross The Navy Cross is the United States Naval Service's second-highest military decoration awarded for sailors and marines who distinguish themselves for extraordinary heroism in combat with an armed enemy force. The medal is equivalent to the Army ...
. His citation read:


Battle of Leyte Gulf

After replacing the damaged ships, Task Group 38.1 consisted of the carriers USS ''Wasp'', ''Hornet'' and ; cruisers , , , and ; and twelve destroyers. On 22 October they were augmented by the return of ''Cowpens'' and the addition of the and its escorts. That night, Halsey directed McCain to replenish at
Ulithi Ulithi (, , or ; pronounced roughly as YOU-li-thee) is an atoll in the Caroline Islands of the western Pacific Ocean, about east of Yap, within Yap State. Name The name of the island goes back to Chuukic languages, Proto-Chuukic ''*úlú-diw ...
, so Task Group 38.1 headed east. At 08:46 on 24 October, with indications of an impending naval battle, Halsey ordered McCain to reverse course, refuel at sea, and conduct air searches. McCain reached the rendezvous point and refueling commenced at 07:24 on 25 October. Monitoring the radio circuits, McCain realised that Vice Admiral Thomas C. Kinkaids' escort carriers were under attack off Samar and, on his own initiative, ordered Task Group 38.1 to complete refueling and head towards Samar at . McCain recovered his
combat air patrol Combat air patrol (CAP) is a type of flying mission for fighter aircraft. A combat air patrol is an aircraft patrol provided over an objective area, over the force protected, over the critical area of a combat zone, or over an air defense area, ...
and increased speed to . Although the airfield at
Tacloban Tacloban ( ; ), officially the City of Tacloban (; ), is a Cities of the Philippines#Legal classification, highly urbanized city on Leyte island in the Eastern Visayas region of the Philippines. According to the 2020 census, Tacloban has a popu ...
on Leyte reported that it was usable in an emergency, McCain ordered his
Grumman TBF Avenger The Grumman TBF Avenger (designated TBM for aircraft manufactured by General Motors) is an American World War II-era torpedo bomber developed initially for the United States Navy and Marine Corps, and eventually used by several air and naval a ...
torpedo planes loaded with bombs instead of torpedoes to extend their range. To save time, since the wind was from the east, he adopted the unusual maneuver of having the carriers increase speed to , turn into the wind to launch aircraft, then turn about and catch up with the escorts. His first strike, consisting of 48 Hellcats, 33 Helldivers and 19 Avengers departed at 11:02, followed by a second of 35 Hellcats, 20 Helldivers and 21 Avengers. Six aircraft were lost; several had to land at Tacloban or on the escort carriers. A single bomb hit was made on the . While King, Nimitz and subsequent historians had considerable criticisms of Halsey's handling of the Third Fleet in the battle, McCain was commended for his handling of Task Group 38.1, especially for actions taken on his own initiative.


Task Force 38 commander

On 30 October 1944, McCain assumed command of Task Force 38. McCain conducted air strikes against targets in the central Philippines and
Luzon Luzon ( , ) is the largest and most populous List of islands in the Philippines, island in the Philippines. Located in the northern portion of the List of islands of the Philippines, Philippine archipelago, it is the economic and political ce ...
while covering the
Battle of Leyte The Battle of Leyte (; ; ) in the Pacific campaign of World War II was the amphibious invasion of the island of Leyte in the Philippines by American forces and Filipino guerrillas under the overall command of General Douglas MacArthur, who fou ...
. Being tied to a single location made the Third Fleet vulnerable, and between October and December, three aircraft carriers were sufficiently badly damaged by
kamikaze , officially , were a part of the Japanese Special Attack Units of military aviators who flew suicide attacks for the Empire of Japan against Allied naval vessels in the closing stages of the Pacific campaign of World War II, intending to d ...
attacks to have to return to shipyards for repairs. McCain instituted new tactics to deal with them. McCain continued to press for more fighters on his carriers, recommending on 20 November that the Helldivers be replaced with fighters. On 23 December, King announced that for the next cycle of operations, the ''Essex''-class carriers would have 72 fighters, 15 dive bombers and 15 torpedo planes. While conducting operations off the Philippines on 17 December, McCain participated in Halsey's decision to keep the combined naval task force on station rather than avoid a major storm, Typhoon Cobra (later known also as "Halsey's Typhoon"), which was approaching the area. The storm sank three destroyers and inflicted heavy damage on many other ships. Some 800 men were lost, in addition to 186 aircraft. A Navy court of inquiry found that Halsey committed "errors of judgment" in sailing into the typhoon, but did not recommend sanction. On 8 and 9 January, McCain conducted air strikes against targets in Formosa and the Ryukyus. Task Force 38 then sailed through the
Luzon Strait The Luzon Strait (Tagalog: ''Kipot ng Luzon'', ) is the strait between Luzon and Taiwan. The strait thereby connects the Philippine Sea to the South China Sea in the western Pacific Ocean. This body of water is an important strait for shipp ...
and raided the South China Sea. A series of air strikes against targets in
French Indochina French Indochina (previously spelled as French Indo-China), officially known as the Indochinese Union and after 1941 as the Indochinese Federation, was a group of French dependent territories in Southeast Asia from 1887 to 1954. It was initial ...
saw Task Force 38 sink 15 warships and 29 merchant ships, twelve of which were
oil tanker An oil tanker, also known as a petroleum tanker, is a ship designed for the bulk cargo, bulk transport of petroleum, oil or its products. There are two basic types of oil tankers: crude tankers and product tankers. Crude tankers move large quant ...
s. As part of the routine change of leadership, Halsey and McCain were relieved by Spruance and Mitscher respectively on 26 January 1945, and Task Force 38 became Task Force 58 again. Between 30 October 1944 and 26 January 1945, Task Force 38 had destroyed or damaged 101 Japanese warships and 298 merchant ships; its aircraft had shot down 357 Japanese aircraft over targets and 107 in the air over the task force; its anti-aircraft guns had accounted for 21 more, and 1,172 were destroyed on the ground. On the other side of the ledger, Task Force 38 had lost 203 aircraft, 155 pilots and 96 aircrew during operations, and 180 aircraft, 43 pilots and 9 aircrew in accidents. McCain was awarded a Gold Star to his Distinguished Service Medal on 23 March 1945, for his "brilliant tactical control" of the fast carrier forces during operations in the Philippines and South China Sea from September 1944 to January 1945.


Typhoon Connie

After a period of leave in the United States, McCain reported back to Pearl Harbor on 1 April 1945. On 17 May, he hoisted his flag on the aircraft carrier at Ulithi. He relieved Mitscher on 28 May, and Task Force 58 became Task Force 38 once more. On 4 June, Task Force 38 encountered Typhoon Connie (also known as Typoon Viper). McCain recommended to Halsey that Task Force 38 leave the area. Halsey agreed, but postponed a decision to depart until he had more information. McCain wanted to head east, which would have put Task Force 38 out of harm's way, but at 20:00 Halsey ordered ordered Task Force 38 to set course to 300 degrees. McCain thought this would be headed into the typhoon, but complied with the order. On receipt of more information, McCain changed course to 000 degrees at 03:00. At 04:20 on 5 June, Clark, in command of Task Group 38.1, which was getting the worst of the storm, informed McCain that he could steer clear of it by altering course to 120 degrees. McCain checked with Halsey, who told him to maintain course. McCain was sailing with Task Group 38.4, which was getting clear on the current course of 000 degrees, and saw no reason to alter it, but gave Clark permission to use his own judgment at 04:40. No ships sank in this storm, but six men died and 33 ships were damaged, including the cruiser , which lost its bow. Aircraft lost included 33 swept overboard, 36 jettisoned and 7 damaged beyond repair. The court of inquiry assigned primary blame to Halsey for the change of course from 110 to 300 degrees, but assigned secondary blame to McCain for the twenty-minute delay in granting Clark permission to change course. The court recommended that consideration be given to relieving Halsey and McCain of their commands. The new Secretary of the Navy,
James Forrestal James Vincent Forrestal (February 15, 1892 – May 22, 1949) was the last Cabinet (government), cabinet-level United States Secretary of the Navy and the first United States Secretary of Defense. Forrestal came from a very strict middle-cla ...
, was in favor of retiring Halsey. King agreed, but felt that since Halsey was a popular hero, his relief would make the Navy look bad. McCain was more vulnerable, and Nimitz decided to replace him. On 15 July, McCain was informed that he would be handing over command of Task Force 38 to Towers on 1 September 1945 and become the deputy head of the
Veterans Administration The United States Department of Veterans Affairs (VA) is a Cabinet-level executive branch department of the federal government charged with providing lifelong healthcare services to eligible military veterans at the 170 VA medical centers an ...
under General
Omar Bradley Omar Nelson Bradley (12 February 1893 – 8 April 1981) was a senior Officer (armed forces), officer of the United States Army during and after World War II, rising to the rank of General of the Army (United States), General of the Army. He wa ...
. McCain remained in command of Task Force 38 through July, as Task Force 38 conducted raids on the home islands of Japan. McCain had doubts about the wisdom of conducting attacks on warships and shipping in Kure and the
Seto Inland Sea The , sometimes shortened to the Inland Sea, is the body of water separating Honshu, Shikoku, and Kyushu, three of the four main islands of Japan. It serves as a waterway connecting the Pacific Ocean to the Sea of Japan. It connects to Osaka Ba ...
, believing that attacks on airfields and aircraft factories were a better use of his resources, but he complied with Nimitz's orders.


Death

By war's end in August 1945, the stress of combat operations, lifelong anxiety, and probable heart disease had taken its toll. McCain requested home leave to recuperate, but Halsey insisted that he be present at the Japanese surrender ceremony in
Tokyo Bay is a bay located in the southern Kantō region of Japan spanning the coasts of Tokyo, Kanagawa Prefecture, and Chiba Prefecture, on the southern coast of the island of Honshu. Tokyo Bay is connected to the Pacific Ocean by the Uraga Channel. Th ...
on 2 September. Departing immediately after the ceremony, McCain arrived home in
Coronado, California Coronado (Spanish language, Spanish for "Crowned") is a resort town, resort city in San Diego County, California, United States, across San Diego Bay from downtown San Diego. It was founded in the 1880s and incorporated in 1890. Its population ...
, on 5 September. In the middle of a welcome-home party the following afternoon, he told his wife that he did not feel well. At 17:10, he died of a
heart attack A myocardial infarction (MI), commonly known as a heart attack, occurs when Ischemia, blood flow decreases or stops in one of the coronary arteries of the heart, causing infarction (tissue death) to the heart muscle. The most common symptom ...
. He was 61 years old. His death was front-page news across the United States. He was buried at
Arlington National Cemetery Arlington National Cemetery is the largest cemetery in the United States National Cemetery System, one of two maintained by the United States Army. More than 400,000 people are buried in its 639 acres (259 ha) in Arlington County, Virginia. ...
. His honorary pall bearers were General
Alexander Vandegrift Alexander Archer Vandegrift (March 13, 1887 – May 8, 1973) was a United States Marine Corps highly decorated four-star general (United States), general, Medal of Honor recipient, and a Commandant of the United States Marine Corps, Commandant of ...
, Vice Admirals Russell Willson, Leigh Noyes and Ferdinand Reichmuth, and Rear Admirals George S. Bryan and Matthias Gardner. Short in stature and of rather thin frame, McCain was gruff and profane; he liked to drink and gamble. He showed courage and was regarded as a natural, inspirational leader. In the words of one biographical profile, McCain "preferred contentious conflict to cozy compromise."


Posthumous honors

In 1949, McCain was posthumously promoted to admiral by a resolution of
Congress A congress is a formal meeting of the representatives of different countries, constituent states, organizations, trade unions, political parties, or other groups. The term originated in Late Middle English to denote an encounter (meeting of ...
. This followed a recommendation of
Secretary of the Navy The Secretary of the Navy (SECNAV) is a statutory officer () and the head (chief executive officer) of the Department of the Navy, a military department within the United States Department of Defense. On March 25, 2025, John Phelan was confirm ...
Francis P. Matthews, who said that McCain's combat commendations would have earned him the promotion had he not died so soon after the war. The date of rank was 6 September 1945, the day he died. When his son later achieved this rank, they became the first father-and-son pair to do so. There were other posthumous honors. In December 1945,
King George VI George VI (Albert Frederick Arthur George; 14 December 1895 – 6 February 1952) was King of the United Kingdom and the Dominions of the British Commonwealth from 11 December 1936 until his death in 1952. He was also the last Emperor of In ...
made McCain an honorary
knight commander of the Order of the British Empire The Most Excellent Order of the British Empire is a British order of chivalry, rewarding valuable service in a wide range of useful activities. It comprises five classes of awards across both civil and military divisions, the most senior two o ...
. An
investiture Investiture (from the Latin preposition ''in'' and verb ''vestire'', "dress" from ''vestis'' "robe") is a formal installation or ceremony that a person undergoes, often related to membership in Christian religious institutes as well as Christian kn ...
ceremony was held on board the cruiser (anchored in Long Beach harbor) in July 1948. In April 1946, McCain was awarded a second gold star to his Distinguished Service Medal for his service in command of Task Force 38 from 28 May to 1 September 1945. His citation read: McCain Field, the operations center at Naval Air Station Meridian,
Mississippi Mississippi ( ) is a U.S. state, state in the Southeastern United States, Southeastern and Deep South regions of the United States. It borders Tennessee to the north, Alabama to the east, the Gulf of Mexico to the south, Louisiana to the s ...
, was named in his honor. The observatory building at the University of Mississippi was renamed McCain Hall on 7 October 1947. It housed the university's Naval Reserve Officers Training Corps (ROTC) unit until 1989. It has since been renamed Barnard Observatory, but the new Naval ROTC spaces, in another building, were named the McCain Quarterdeck in April 2003. The guided-missile destroyer (in service from 1953 to 1978) was named after him, and the destroyer (commissioned in 1994 and still in service ) was named for him, his son, Admiral John S. McCain Jr., and, as of a rededication ceremony 11 July 2018, his grandson John S. McCain III.


Dates of rank

*
United States Naval Academy The United States Naval Academy (USNA, Navy, or Annapolis) is a United States Service academies, federal service academy in Annapolis, Maryland. It was established on 10 October 1845 during the tenure of George Bancroft as United States Secre ...
midshipman A midshipman is an officer of the lowest Military rank#Subordinate/student officer, rank in the Royal Navy, United States Navy, and many Commonwealth of Nations, Commonwealth navies. Commonwealth countries which use the rank include Royal Cana ...
– 25 September 1902


Notes


References

* * * * * * * * * * * * * * * {{DEFAULTSORT:McCain, John S. Sr. 1884 births 1945 deaths American people of Scotch-Irish descent Burials at Arlington National Cemetery Honorary Knights Commander of the Order of the British Empire McCain family Military personnel from Mississippi Naval War College alumni People from Carroll County, Mississippi Recipients of the Navy Cross (United States) Recipients of the Navy Distinguished Service Medal Recipients of the Order of the Sun of Peru United States Naval Academy alumni United States Navy admirals United States Navy personnel of World War I United States Navy World War II admirals University of Mississippi alumni United States Naval Aviators Phi Delta Theta members