AM-317 Defense
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AM-317 Defense
USS ''Defense'' (AM-317) was an acquired by the United States Navy for the dangerous task of removing mines from minefields laid in the water to prevent ships from passing. Construction history ''Defense'' was launched on 18 February 1943 at General Engineering and Dry Dock Company in Alameda, California, sponsored by Mrs. A. Duncanfield, and commissioned on 10 January 1944. She was reclassified MSF-317 on 7 February 1955. World War II service Convoy duty Sailing from San Francisco, California, on 24 March 1944, ''Defense'' escorted a convoy to Majuro, then swept mines and had escort duty off Tarawa, Gilbert Islands, from 9 to 19 April. She returned to Pearl Harbor on 30 April, and between 8 May and 9 July escorted two convoys, one to Majuro and one to Eniwetok. After conducting experimental minesweeping exercises at Pearl Harbor until 22 July, she got underway for San Francisco, arriving there on 30 July. From August through December 1944, ''Defense'' provided a va ...
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AM-317 Defense
USS ''Defense'' (AM-317) was an acquired by the United States Navy for the dangerous task of removing mines from minefields laid in the water to prevent ships from passing. Construction history ''Defense'' was launched on 18 February 1943 at General Engineering and Dry Dock Company in Alameda, California, sponsored by Mrs. A. Duncanfield, and commissioned on 10 January 1944. She was reclassified MSF-317 on 7 February 1955. World War II service Convoy duty Sailing from San Francisco, California, on 24 March 1944, ''Defense'' escorted a convoy to Majuro, then swept mines and had escort duty off Tarawa, Gilbert Islands, from 9 to 19 April. She returned to Pearl Harbor on 30 April, and between 8 May and 9 July escorted two convoys, one to Majuro and one to Eniwetok. After conducting experimental minesweeping exercises at Pearl Harbor until 22 July, she got underway for San Francisco, arriving there on 30 July. From August through December 1944, ''Defense'' provided a va ...
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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 in a non-military sense, for example when driving through remote areas. Naval convoys Age of Sail Naval convoys have been in use for centuries, with examples of merchant ships traveling under naval protection dating to the 12th century. The use of organized naval convoys dates from when ships began to be separated into specialist classes and national navies were established. By the French Revolutionary Wars of the late 18th century, effective naval convoy tactics had been developed to ward off pirates and privateers. Some convoys contained several hundred merchant ships. The most enduring system of convoys were the Spanish treasure fleets, that sailed from the 1520s until 1790. When merchant ships sailed independently, a privateer cou ...
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Okinawa
is a prefecture of Japan. Okinawa Prefecture is the southernmost and westernmost prefecture of Japan, has a population of 1,457,162 (as of 2 February 2020) and a geographic area of 2,281 km2 (880 sq mi). Naha is the capital and largest city of Okinawa Prefecture, with other major cities including Okinawa, Uruma, and Urasoe. Okinawa Prefecture encompasses two thirds of the Ryukyu Islands, including the Okinawa, Daitō and Sakishima groups, extending southwest from the Satsunan Islands of Kagoshima Prefecture to Taiwan ( Hualien and Yilan Counties). Okinawa Prefecture's largest island, Okinawa Island, is the home to a majority of Okinawa's population. Okinawa Prefecture's indigenous ethnic group are the Ryukyuan people, who also live in the Amami Islands of Kagoshima Prefecture. Okinawa Prefecture was ruled by the Ryukyu Kingdom from 1429 and unofficially annexed by Japan after the Invasion of Ryukyu in 1609. Okinawa Prefecture was officially founded in 1879 by the Empi ...
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Saipan
Saipan ( ch, Sa’ipan, cal, Seipél, formerly in es, Saipán, and in ja, 彩帆島, Saipan-tō) is the largest island of the Northern Mariana Islands, a Commonwealth (U.S. insular area), commonwealth of the United States in the western Pacific Ocean. According to 2020 estimates by the United States Census Bureau, the population of Saipan was 43,385, a decline of 10% from its 2010 count of 48,220. The legislative and executive branches of Commonwealth government are located in the village of Capitol Hill, Saipan, Capitol Hill on the island while the judicial branch is headquartered in the village of Susupe. Since the entire island is organized as a single municipality, most publications designate Saipan as the Commonwealth's capital. As of 2015, Saipan's mayor is David M. Apatang and the governor of the Northern Mariana Islands is Ralph Torres. History Prehistory Traces of human settlements on Saipan have been found by archaeologists ranging over 4,000 years, includ ...
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Antisubmarine
An anti-submarine weapon (ASW) is any one of a number of devices that are intended to act against a submarine and its crew, to destroy (sink) the vessel or reduce its capability as a weapon of war. In its simplest sense, an anti-submarine weapon is usually a projectile, missile or bomb that is optimized to destroy submarines. History Before World War I Prior to about 1890, naval weapons were only used against surface shipping. With the rise of the military submarine after this time, countermeasures were considered for use against them. The first submarine installation of torpedo tubes was in 1885 and the first ship was sunk by a submarine-launched torpedo in 1887. There were only two ways of countering the military submarine initially: ramming them or sinking them with gunfire. However, once they were submerged, they were largely immune until they had to surface again. By the start of the First World War there were nearly 300 submarines in service with another 80 in production ...
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Bombardment
A bombardment is an attack by artillery fire or by dropping bombs from aircraft on fortifications, combatants, or towns and buildings. Prior to World War I, the term was only applied to the bombardment of defenseless or undefended objects, houses, public buildings, etc. It was only loosely employed to describe artillery attacks upon forts or fortified positions in preparation for assaults by infantry. Since then, it has come to mean any mass attack delivered by artillery or short-range tactical missiles, and later, aerial bombardment delivered by aircraft or long-range missiles. History In its old strict sense, the term was only applied to the bombardment of defenseless or undefended objects, houses, public buildings, etc., by an assailant with the object of disheartening his opponent, and specially to force the civilian population and authorities of a besieged place to persuade their military commander to capitulate before the actual defenses of the place have been reduce ...
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Iwo Jima
Iwo Jima (, also ), known in Japan as , is one of the Japanese Volcano Islands and lies south of the Bonin Islands. Together with other islands, they form the Ogasawara Archipelago. The highest point of Iwo Jima is Mount Suribachi at high. Although south of the metropolis of Tokyo on the mainland, this island of 21 km2 (8 square miles) is administered as part of the Ogasawara Subprefecture of Tokyo. Since July 1944, when all the civilians were forcibly evacuated, the island has had a military-only population. The island was the location of the Battle of Iwo Jima between February 1945 and March 1945. This engagement saw some of the fiercest fighting of the Pacific War, with each side suffering over 20,000 casualties in the battle. The island became globally recognized when Joe Rosenthal, of the Associated Press, published his photograph '' Raising the Flag on Iwo Jima'', taken on Mount Suribachi. The US military occupied Iwo Jima until 1968, when it was returned to ...
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Hawaii
Hawaii ( ; haw, Hawaii or ) is a state in the Western United States, located in the Pacific Ocean about from the U.S. mainland. It is the only U.S. state outside North America, the only state that is an archipelago, and the only state geographically located within the tropics. Hawaii comprises nearly the entire Hawaiian archipelago, 137 volcanic islands spanning that are physiographically and ethnologically part of the Polynesian subregion of Oceania. The state's ocean coastline is consequently the fourth-longest in the U.S., at about . The eight main islands, from northwest to southeast, are Niihau, Kauai, Oahu, Molokai, Lānai, Kahoolawe, Maui, and Hawaii—the last of these, after which the state is named, is often called the "Big Island" or "Hawaii Island" to avoid confusion with the state or archipelago. The uninhabited Northwestern Hawaiian Islands make up most of the Papahānaumokuākea Marine National Monument, the United States' largest protected ...
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San Diego, California
San Diego ( , ; ) is a city on the Pacific Ocean coast of Southern California located immediately adjacent to the Mexico–United States border. With a 2020 population of 1,386,932, it is the eighth most populous city in the United States and the seat of San Diego County, the fifth most populous county in the United States, with 3,338,330 estimated residents as of 2019. The city is known for its mild year-round climate, natural deep-water harbor, extensive beaches and parks, long association with the United States Navy, and recent emergence as a healthcare and biotechnology development center. San Diego is the second largest city in the state of California, after Los Angeles. Historically home to the Kumeyaay people, San Diego is frequently referred to as the "Birthplace of California", as it was the first site visited and settled by Europeans on what is now the U.S. west coast. Upon landing in San Diego Bay in 1542, Juan Rodríguez Cabrillo claimed the area for Spain, ...
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Eniwetok
Enewetak Atoll (; also spelled Eniwetok Atoll or sometimes Eniewetok; mh, Ānewetak, , or , ; known to the Japanese as Brown Atoll or Brown Island; ja, ブラウン環礁) is a large coral atoll of 40 islands in the Pacific Ocean and with its 664 people (as of 2011) forms a legislative district of the Ralik Chain of the Marshall Islands. With a land area total less than , it is no higher than and surrounds a deep central lagoon, in circumference. It is the second-westernmost atoll of the Ralik Chain and is west from Bikini Atoll. It was held by the Japanese from 1914 until its capture by the United States in February 1944, during World War II, then became Naval Base Eniwetok. Nuclear testing by the US totaling the equivalent of over 30 megatons of TNT took place during the Cold War; in 1977–1980, a concrete dome (the Runit Dome) was built on Runit Island to deposit radioactive soil and debris. The Runit Dome is deteriorating and could be breached by a typhoon, though ...
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Pearl Harbor
Pearl Harbor is an American lagoon harbor on the island of Oahu, Hawaii, west of Honolulu. It was often visited by the Naval fleet of the United States, before it was acquired from the Hawaiian Kingdom by the U.S. with the signing of the Reciprocity Treaty of 1875. Much of the harbor and surrounding lands are now a United States Navy deep-water naval base. It is also the headquarters of the United States Pacific Fleet. The U.S. government first obtained exclusive use of the inlet and the right to maintain a repair and coaling station for ships here in 1887. The surprise attack by the Imperial Japanese Navy on December 7, 1941, led the United States to declare war on the Empire of Japan, making the attack on Pearl Harbor the immediate cause of the United States' entry into World War II. History Pearl Harbor was originally an extensive shallow embayment called ''Wai Momi'' (meaning, “Waters of Pearl”) or ''Puuloa'' (meaning, “long hill”) by the Hawaiians. Puuloa was r ...
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Gilbert Islands
The Gilbert Islands ( gil, Tungaru;Reilly Ridgell. ''Pacific Nations and Territories: The Islands of Micronesia, Melanesia, and Polynesia.'' 3rd. Ed. Honolulu: Bess Press, 1995. p. 95. formerly Kingsmill or King's-Mill IslandsVery often, this name applied only to the southern islands of the archipelago, the northern half being designated as the Scarborough Islands. ''Merriam-Webster's Geographical Dictionary''. Springfield, Massachusetts: Merriam Webster, 1997. p. 594) are a chain of sixteen atolls and coral islands in the Pacific Ocean, about halfway between Papua New Guinea and Hawaii. They constitute the main part of the nation of Kiribati (the name of which is a rendering of “Gilberts” in the phonology of the indigenous Gilbertese). Geography The atolls and islands of the Gilbert Islands are arranged in an approximate north-to-south line. The northernmost island in the group, Makin, it is approximately from southernmost, Arorae, as the crow flies. Geographically, the ...
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