Mariana and Palau Islands campaign

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Mariana and Palau Islands campaign
Part of the Pacific Theater of World War II
Water Buffalo loaded with Marines.jpg

A U.S. amphibious tractor loaded with Marines approaches Tinian during the U.S. landings on that island
DateJune – November 1944
Location
Mariana and Palau Islands, Pacific Ocean
Result U.S. victory
Belligerents
Flag of the United States (1912-1959).svg  United States Merchant flag of Japan (1870).svg  Japan
Commanders and leaders
Chester Nimitz
Raymond A. Spruance
Richmond K. Turner
Holland Smith
Roy Geiger
Harry Schmidt
William H. Rupertus
Paul J. Mueller
Yoshitsugu Saito  
Chuichi Nagumo  
Jisaburō Ozawa
Kakuji Kakuta  
Takeshi Takashina  
Hideyoshi Obata  
Kiyochi Ogata  
Sadae Inoue
Kunio Nakagawa  
Strength
128,000
600+ ships
71,000
Casualties and losses
8,125 killed and missing 67,000+ killed

The Mariana and Palau Islands campaign, also known as Operation Forager, was an offensive launched by United States forces against Imperial Japanese forces in the Mariana Islands and Palau in the Pacific Ocean between June and November 1944 during the Pacific War. [1] The United States offensive, under the overall command of Chester Nimitz, followed the Gilbert and Marshall Islands campaign and was intended to neutralize Japanese bases in the central Pacific, support the Allied drive to retake the Philippines, and provide bases for a strategic bombing campaign against Japan.

United States Federal republic in North America

The United States of America (USA), commonly known as the United States or America, is a country comprising 50 states, a federal district, five major self-governing territories, and various possessions. At 3.8 million square miles, the United States is the world's third or fourth largest country by total area and is slightly smaller than the entire continent of Europe's 3.9 million square miles. With a population of over 327 million people, the U.S. is the third most populous country. The capital is Washington, D.C., and the largest city by population is New York City. Forty-eight states and the capital's federal district are contiguous in North America between Canada and Mexico. The State of Alaska is in the northwest corner of North America, bordered by Canada to the east and across the Bering Strait from Russia to the west. The State of Hawaii is an archipelago in the mid-Pacific Ocean. The U.S. territories are scattered about the Pacific Ocean and the Caribbean Sea, stretching across nine official time zones. The extremely diverse geography, climate, and wildlife of the United States make it one of the world's 17 megadiverse countries.

Empire of Japan Empire in the Asia-Pacific region between 1868–1947

The Empire of Japan was the historical nation-state and great power that existed from the Meiji Restoration in 1868 to the enactment of the 1947 constitution of modern Japan.

Mariana Islands archipelago in western North Pacific Ocean

The Mariana Islands are a crescent-shaped archipelago comprising the summits of fifteen mostly dormant volcanic mountains in the western North Pacific Ocean, between the 12th and 21st parallels north and along the 145th meridian east. They lie south-southeast of Japan, west-southwest of Hawaii, north of New Guinea and east of the Philippines, demarcating the Philippine Sea's eastern limit. They are found in the northern part of the western Oceanic sub-region of Micronesia, and are politically divided into two jurisdictions of the United States: the Commonwealth of the Northern Mariana Islands and, at the southern end of the chain, the territory of Guam. The islands were named after the influential Spanish queen Mariana of Austria.

Contents

Beginning the offensive, United States Marine Corps and United States Army forces, with support from the United States Navy, executed landings on Saipan in June 1944. In response, the Imperial Japanese Navy's combined fleet sortied to attack the U.S. Navy fleet supporting the landings. In the resulting aircraft carrier Battle of the Philippine Sea (the so-called “Great Marianas Turkey Shoot”) on 19–20 June, the Japanese naval forces were decisively defeated with heavy and irreplaceable losses to their carrier-borne and land-based aircraft.

United States Marine Corps Amphibious warfare branch of the United States Armed Forces

The United States Marine Corps (USMC), also referred to as the United States Marines or U.S. Marines, is a branch of the United States Armed Forces responsible for conducting expeditionary and amphibious operations with the United States Navy as well as the Army and Air Force. The U.S. Marine Corps is one of the four armed service branches in the U.S. Department of Defense (DoD) and one of the seven uniformed services of the United States.

United States Army Land warfare branch of the United States Armed Forces

The United States Army (USA) is the land warfare service branch of the United States Armed Forces. It is one of the seven uniformed services of the United States, and is designated as the Army of the United States in the United States Constitution. As the oldest and most senior branch of the U.S. military in order of precedence, the modern U.S. Army has its roots in the Continental Army, which was formed to fight the American Revolutionary War (1775–1783)—before the United States of America was established as a country. After the Revolutionary War, the Congress of the Confederation created the United States Army on 3 June 1784 to replace the disbanded Continental Army. The United States Army considers itself descended from the Continental Army, and dates its institutional inception from the origin of that armed force in 1775.

United States Navy Naval warfare branch of the United States Armed Forces

The United States Navy (USN) is the naval warfare service branch of the United States Armed Forces and one of the seven uniformed services of the United States. It is the largest and most capable navy in the world and it has been estimated that in terms of tonnage of its active battle fleet alone, it is larger than the next 13 navies combined, which includes 11 U.S. allies or partner nations. with the highest combined battle fleet tonnage and the world's largest aircraft carrier fleet, with eleven in service, and two new carriers under construction. With 319,421 personnel on active duty and 99,616 in the Ready Reserve, the Navy is the third largest of the service branches. It has 282 deployable combat vessels and more than 3,700 operational aircraft as of March 2018, making it the second-largest air force in the world, after the United States Air Force.

U.S. forces executed landings on Guam and Tinian in July 1944. After heavy fighting, Saipan was secured in July and Guam and Tinian in August 1944. The U.S. then constructed airfields on Saipan and Tinian where B-29s were based to conduct strategic bombing missions against the Japanese mainland until the end of World War II, including the nuclear attacks on Hiroshima and Nagasaki.

Battle of Guam (1944) WWII battle by US forces to recapture Guam from the Empire of Japan

The Second Battle of Guam was the American recapture of the Japanese-held island of Guam, a U.S. territory in the Mariana Islands captured by the Japanese from the U.S. in the 1941 First Battle of Guam during the Pacific campaign of World War II.

Battle of Tinian battle of the Pacific campaign of World War II on the island of Tinian in the Mariana Islands

The Battle of Tinian was a battle of the Pacific campaign of World War II, fought on the island of Tinian in the Mariana Islands from 24 July until 1 August 1944. The 8,000-man Japanese garrison was eliminated, and the island joined Saipan and Guam as a base for the Twentieth Air Force.

Atomic bombings of Hiroshima and Nagasaki the use of atomic weapons by the United States on Japan towards the end of World War II

During the final stage of World War II, the United States detonated two nuclear weapons over the Japanese cities of Hiroshima and Nagasaki on August 6 and 9, 1945, respectively. The United States dropped the bombs after obtaining the consent of the United Kingdom, as required by the Quebec Agreement. The two bombings killed 129,000–226,000 people, most of whom were civilians. They remain the only use of nuclear weapons in the history of armed conflict.

In the meantime, in order to secure the flank for U.S. forces preparing to attack Japanese forces in the Philippines, in September 1944, U.S. Marine and Army forces landed on the islands of Peleliu and Angaur in Palau. After heavy and intense combat on Peleliu, the island was finally secured by U.S. forces in November 1944.

Battle of Peleliu between the United States and the Empire of Japan in the Pacific Theater of World War II

The Battle of Peleliu, codenamed Operation Stalemate II by the United States military, was fought between the U.S. and Japan during the Mariana and Palau Campaign of World War II, from September to November 1944, on the island of Peleliu.

Battle of Angaur battle of the Pacific campaign in World War II on the island of Angaur in the Palau Islands

The Battle of Angaur was a battle of the Pacific campaign in World War II, fought on the island of Angaur in the Palau Islands from 17 September—22 October 1944. This battle was part of a larger offensive campaign known as Operation Forager which ran from June 1944 to November 1944 in the Pacific Theater of Operations, and Operation Stalemate II in particular.

Palau republic in Oceania

Palau, officially the Republic of Palau, is an island country located in the western Pacific Ocean. The country contains approximately 340 islands, forming the western chain of the Caroline Islands in Micronesia, and has an area of 466 square kilometers (180 sq mi). The most populous island is Koror. The capital Ngerulmud is located on the nearby island of Babeldaob, in Melekeok State. Palau shares maritime boundaries with the Philippines, Indonesia, and the Federated States of Micronesia.

Following their landings in the Mariana and Palau Islands, Allied forces continued their ultimately successful campaign against Japan by landing in the Philippines in October 1944 and the Volcano and Ryukyu Islands beginning in January 1945.

Volcano and Ryukyu Islands campaign battle

The Volcano and Ryūkyū Islands Campaign was a series of battles and engagements between Allied forces and Imperial Japanese forces in the Pacific Ocean campaign of World War II between January and June 1945.

See also

Battle of Saipan battle of the Pacific campaign of World War II on the island of Saipan in the Mariana Islands

The Battle of Saipan was a battle of the Pacific campaign of World War II, fought on the island of Saipan in the Mariana Islands from 15 June to 9 July 1944. The Allied invasion fleet embarking the expeditionary forces left Pearl Harbor on 5 June 1944, the day before Operation Overlord in Europe was launched. The U.S. 2nd Marine Division, 4th Marine Division, and the Army's 27th Infantry Division, commanded by Lieutenant General Holland Smith, defeated the 43rd Infantry Division of the Imperial Japanese Army, commanded by Lieutenant General Yoshitsugu Saito. The loss of Saipan, with the death of at least 29,000 troops and heavy civilian casualties, precipitated the resignation of Japanese Prime Minister Hideki Tōjō and left the Japanese mainland within the range of Allied B-29 bombers.

Related Research Articles

Tinian island in the United States of America

Tinian is one of the three principal islands of the Commonwealth of the Northern Mariana Islands. Together with uninhabited neighboring Aguigan, it forms Tinian Municipality, one of the four constituent municipalities of the Northern Marianas. Tinian's largest village is San Jose.

USS <i>Belleau Wood</i> (CVL-24) ship

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Holland Smith United States Marine Corps general

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Harry Schmidt (USMC) united States Marine Corps general

Harry Schmidt was a United States Marine Corps general. During World War II, he served as the Commanding General of the Fourth Marine Division during the battles of Kwajalein in the Marshall Islands and Saipan in the Mariana Islands, and as Commanding General of the Fifth Amphibious Corps during the battles of Tinian in the Marianas and Iwo Jima in the Volcano Islands.

Saipan International Airport airport on Saipan, Northern Mariana Islands

Saipan International Airport, also known as Francisco C. Ada/Saipan International Airport, is a public airport located on Saipan Island in the United States Commonwealth of the Northern Mariana Islands. The airport is owned by Commonwealth Ports Authority. Its airfield was previously known as Aslito and Isley Field.

Pacific Ocean theater of World War II

The Pacific Ocean theater, during World War II, was a major theater of the war between the Allies and the Empire of Japan. It was defined by the Allied powers' Pacific Ocean Area command, which included most of the Pacific Ocean and its islands, while mainland Asia was excluded, as were the Philippines, the Dutch East Indies, Borneo, Australia, most of the Territory of New Guinea and the western part of the Solomon Islands.

Thomas E. Watson (USMC) United States Marine Corps general

Thomas Eugene Watson was a United States Marine Corps General who served in the Marine Corps from 1912 to 1950. His last command was as Commanding General, Fleet Marine Force, Pacific. Previously, he had commanded the Second Marine Division at Camp Lejeune, North Carolina, and was Commanding Officer of the famed Second Division in the battle for Saipan and Tinian during World War II. For outstanding services in this capacity, he was awarded a Gold Star in lieu of a second Navy Distinguished Service Medal.

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USS Windsor (APA-55) was an attack transport built for the U.S. Navy during World War II. She served in the Pacific Ocean and provided troop transport service. She returned home at war’s end with five battle stars to her credit.

Koreans in Micronesia used to form a significant population before World War II, when most of the region was ruled as the South Pacific Mandate of the Empire of Japan; for example, they formed 7.3% of the population of Palau in 1943. However, after the area came under the control of the United States as the Trust Territory of the Pacific Islands, most Koreans returned to their homeland. As of 2013, about seven thousand South Korean expatriates & immigrants and Korean Americans reside in Guam and the Northern Marianas, which have remained under U.S. control, while only around two hundred South Korean expatriates reside in the independent countries of Micronesia.

20th Marine Regiment (United States)

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North Field (Tinian) former World War II airfield on Tinian in the Mariana Islands

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Japanese air attacks on the Mariana Islands raids which targeted United States Army Air Forces (USAAF) bases

During World War II, a series of Japanese air attacks on the Mariana Islands took place between November 1944 and January 1945. These raids targeted United States Army Air Forces (USAAF) bases and sought to disrupt the bombing of Japan by B-29 Superfortress heavy bombers operating from the islands. The Japanese lost 37 aircraft during this operation, but destroyed 11 B-29s and damaged a further 43. Preparations were also made for commando raids on the bases in early and mid-1945 but these did not go ahead.

Marine Unmanned Aerial Vehicle Squadron 4 (VMU-4) is an unmanned aerial vehicle (UAV) squadron in the United States Marine Corps that operates the RQ-7B Shadow. It is the fourth UAV squadron in the Marine Corps and the first in the reserve component. The squadron, nicknamed the “Evil Eyes”, entered the force structure on July 1, 2010, when Marine Observation Squadron 4 (VMO-4) was reactivated and redesignated VMU-4.

Joint Assault Signal Company Joint service unit in the United States armed forces

The Joint Assault Signal Company (JASCO) were joint service units that provided ship to shore, air to ground communications to coordinate and control Naval Gunfire and Close Air Support to the United States Army. They were composed of specially trained Marines, Sailors and Army officers and enlisted. The Army component was composed of Air Liaison Officers, modern day Forward Air Controllers and enlisted communications technicians. JASCOs were created in the Pacific because of communication clutter, too many small teams to be effective. After the costly invasion of Tarawa the need for centralized command and control of air and naval fire support, utilizing Navy, Marine or Army gunners, spotters and radiomen was seen. Based on the Guadacanal experience of Major General Alexander A. Vandergrift the Joint Assault Signal Companies were formed.

References

  1. "Liberation: Marines in the Recapture of Guam (Operation in Forager)". www.nps.gov. Retrieved 2016-03-09.

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