Defense Battalion
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Defense Battalion
Marine Defense Battalions were United States Marine Corps battalions charged with coastal and air defense of advanced naval bases during World War II. They maintained large anti-ship guns, anti-aircraft guns, searchlights, and small arms to repel landing forces. Organization Unlike the mobile Marine forces involved in offensive actions, defense battalions were detached to key outposts, in the Pacific and one in Iceland, and remained at the station they defended. Most varied greatly in size and equipment. The battalions often had several coastal gun batteries, several anti-aircraft batteries, a detection battery (searchlights and radar), and machine gun units. While a few had composite infantry companies attached, most defense battalions were responsible for providing their own riflemen. A 1939 table of organization and equipment (TOE) included:Bogart, Charles H., "Fifth Marine Defense Battalion in Iceland", ''Coast Defense Journal'', Vol. 29, Issue 3, August 2015, Coast Defense ...
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3-inch Gun M3
The 3-inch anti-aircraft gun M3 was an anti-aircraft gun which served throughout the 1930s and possibly into early World War II. Developed from the earlier 3-inch M1917 and 3-inch M1918 guns, it was in the process of being replaced by the time of the US entry into World War II, but was subsequently adapted into an anti-tank gun role, both free-standing (as the 3-inch M5) and in a self-propelled tank destroyer (the M10). It may have seen action in the Pacific Theatre. History During the late 1920s, M1917 and M1918 guns were fitted with removable barrel liners and re-designated as 3-inch M1, M2, or M3 guns, depending on the variant they were upgraded from. The most numerous variant was the M3 which was introduced in 1928 and consisted of a new barrel with a removable autofretted liner. During the 1930s further upgrades were proposed but these were abandoned with the adoption of the 90 mm gun M1 in 1938. Design The M3 consisted of a barrel 50 calibers in length, which h ...
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2nd Marine Division (United States)
The 2nd Marine Division (2nd MARDIV) is a division (military), division of the United States Marine Corps, which forms the ground combat element of the II Marine Expeditionary Force (II MEF). The division is based at Marine Corps Base Camp Lejeune, North Carolina and headquartered at Julian C. Smith Hall. The 2nd Marine Division earned renown in World War II, distinguishing itself at Battle of Guadalcanal, Guadalcanal, Battle of Tarawa, Tarawa, Battle of Saipan, Saipan, Battle of Tinian, Tinian, and Battle of Okinawa, Okinawa. History Pre-World War II The lineal forebearer of the 2nd Marine Division is the 2nd Marine Brigade, which was activated on 1 July 1936 at San Diego, California. Subsequently, the brigade was deployed during August–September 1937 to Shanghai, China. The 2nd Marine Brigade relocated during February–April 1938 to San Diego, California. World War II Major General Clayton B. Vogel, its first commander, activated the 2nd Marine Division at a parade and re ...
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6th Marine Regiment (United States)
The 6th Marine Regiment (also referred to as "6th Marines") is an infantry regiment of the United States Marine Corps based at Marine Corps Base Camp Lejeune, North Carolina. The regiment falls under the command of the 2nd Marine Division of the II Marine Expeditionary Force. Its combat history dates back to World War I when they were part of the American Expeditionary Force. They fought in the Pacific Theater in World War II, most notably at the battles of Guadalcanal, Tarawa, Saipan, Tinian and Okinawa. More recently, the regiment has seen combat during the Gulf War and in support of Operation Iraqi Freedom. Subordinate units The regiment comprises four (five during war) organic infantry battalions and one headquarters company: * Headquarters Company 6th Marines (HQ/6) * 1st Battalion, 6th Marines (1/6) * 2nd Battalion, 6th Marines (2/6) * 3rd Battalion, 6th Marines (3/6) * 1st Battalion, 8th Marines (1/8) * 2nd Battalion, 9th Marines (2/9; during wartime only, when activated ...
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1st Provisional Marine Brigade
The 1st Provisional Marine Brigade was a Marine infantry brigade of the United States Marine Corps (USMC) that existed periodically from 1912 to 1950. It was an ad hoc unit formed for specific operations and not considered a "permanent" USMC unit. The brigade saw five brief activations for service over a 40-year span. First created in 1912 for duty in Cuba following the Negro Rebellion, the brigade was not activated again until 1941 when it was hastily constructed from the 6th Marine Regiment to garrison Iceland after the occupation of that country by British troops during World War II. The brigade saw service once more in the war during the Battle of Guam in the Pacific War, conducting an amphibious landing on that island's southern sector and subduing resistance from Japanese troops. It was activated once more in a brief organizational shift after the war. The brigade was formed again in 1950 when it was hastily assembled for service in the Korean War. The brigade participate ...
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Imperial Japanese Navy
The Imperial Japanese Navy (IJN; Kyūjitai: Shinjitai: ' 'Navy of the Greater Japanese Empire', or ''Nippon Kaigun'', 'Japanese Navy') was the navy of the Empire of Japan from 1868 to 1945, when it was dissolved following Japan's surrender in World War II. The Japan Maritime Self-Defense Force (JMSDF) was formed between 1952–1954 after the dissolution of the IJN. The Imperial Japanese Navy was the third largest navy in the world by 1920, behind the Royal Navy and the United States Navy (USN). It was supported by the Imperial Japanese Navy Air Service for aircraft and airstrike operation from the fleet. It was the primary opponent of the Western Allies in the Pacific War. The origins of the Imperial Japanese Navy go back to early interactions with nations on the Asian continent, beginning in the early medieval period and reaching a peak of activity during the 16th and 17th centuries at a time of cultural exchange with European powers during the Age of Discovery. After ...
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Caribbean
The Caribbean (, ) ( es, El Caribe; french: la Caraïbe; ht, Karayib; nl, De Caraïben) is a region of the Americas that consists of the Caribbean Sea, its islands (some surrounded by the Caribbean Sea and some bordering both the Caribbean Sea and the North Atlantic Ocean) and the surrounding coasts. The region is southeast of the Gulf of Mexico and the North American mainland, east of Central America, and north of South America. Situated largely on the Caribbean Plate, the region has more than 700 islands, islets, reefs and cays (see the list of Caribbean islands). Island arcs delineate the eastern and northern edges of the Caribbean Sea: The Greater Antilles and the Lucayan Archipelago on the north and the Lesser Antilles and the on the south and east (which includes the Leeward Antilles). They form the West Indies with the nearby Lucayan Archipelago ( the Bahamas and Turks and Caicos Islands), which are considered to be part of the Caribbean despite not borde ...
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Puerto Rico
Puerto Rico (; abbreviated PR; tnq, Boriken, ''Borinquen''), officially the Commonwealth of Puerto Rico ( es, link=yes, Estado Libre Asociado de Puerto Rico, lit=Free Associated State of Puerto Rico), is a Caribbean island and Unincorporated territories of the United States, unincorporated territory of the United States. It is located in the northeast Caribbean Sea, approximately southeast of Miami, Florida, between the Dominican Republic and the United States Virgin Islands, U.S. Virgin Islands, and includes the eponymous main island and several smaller islands, such as Isla de Mona, Mona, Culebra, Puerto Rico, Culebra, and Vieques, Puerto Rico, Vieques. It has roughly 3.2 million residents, and its Capital city, capital and Municipalities of Puerto Rico, most populous city is San Juan, Puerto Rico, San Juan. Spanish language, Spanish and English language, English are the official languages of the executive branch of government, though Spanish predominates. Puerto Rico ...
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Culebra Island
Isla Culebra (, ''Snake Island'') is an island, town and municipality of Puerto Rico and geographically part of the Spanish Virgin Islands. It is located approximately east of the Puerto Rican mainland, west of St. Thomas and north of Vieques. Culebra is spread over 5 barrios and Culebra Pueblo (Dewey), the main town and the administrative center of the island. Residents of the island are known as c''ulebrenses''. With a population of 1,792 as of the 2020 Census, it is Puerto Rico's least populous municipality. Originally called ''Isla del Pasaje'' and ''Isla de San Ildefonso'', Culebra is also known as ''Isla Chiquita'' ("Little Island"), ''Cuna del Sol Borincano'' ("Cradle of the Puerto Rican Sun") and ''Última Virgen'' ("Last Virgin", due to its position at the end of the Virgin Islands archipelago). History Some sources claim that Christopher Columbus was the first European to arrive at the island during his second voyage on November 19, 1493.
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Landing Operation
A landing operation is a military action during which a landing force, usually utilizing landing craft, is transferred to land with the purpose of power projection ashore. With the proliferation of aircraft, a landing may refer to amphibious forces, airborne forces, or a combination of both. Landing of ships In a military invasion conducted by sea, the landing and establishment of a beachhead is a critical phase. In the ''Iliad'', the landing operation of the Achaean navy is described in book three. Since the Trojans had been warned of the invasion, the beach was defended. In Greek polytheism, the ἱερά ἐπιβατήρια were sacrifices offered to the gods after a successful landing. A λόγος ἐπιβατήριον was a dignified speech delivered upon disembarkation, contrasting with an ἀποβατήριον (''apobaterion''), the speech delivered upon departure. Air landing troops Missions of air landing troops, as defined by the U.S. FM 100–5, ''Oper ...
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Advanced Base Force
The United States Marine Corps's Advanced Base Force (Advance Base Force in some references) was a coastal and naval base defense force that was designed to set up mobile and fixed bases in the event of major landing operations within, and beyond, the territorial United States.Commander Richard H. Jackson, USN, ''History of the Advanced Base'' (May 15, 1913) and ''The Naval Advanced Base'' (May 29, 1915); Subject File 408, Records of the General Board. * General Board to SecNav, "Letter to the Secretary of the Navy (LSSN)"; August 13, 1906. * General Board memo; May 29, 1915. Established in the beginning of the 20th century, the Advanced Base Force was the United States' first combined task force built on the concept of the Marine Corps' traditional role in expeditionary warfare. The slow development of the advanced base force played a significant role in the controversy over the removal of the ships' guards (Marines on Navy ships) in 1908–1909.Millett, Allan R., ''Semper Fidel ...
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