V Amphibious Corps
|V Amphibious Corps|
|Active||25 August 1943 – 15 February 1946|
|Branch||United States Marine Corps|
|Type||Marine Air-Ground Task Force|
|Role||Expeditionary combat force|
|Engagements||World War II
*Battle of Tarawa
* Battle of Makin
* Battle of Kwajalein
* Battle of Eniwetok
* Battle of Saipan
* Battle of Tinian
* Battle of Iwo Jima
The V Amphibious Corps (VAC) was a formation of the United States Marine Corps and was composed of the 3rd, 4th and 5th Marine Divisions during World War II. They were the amphibious landing force for the United States Fifth Fleet and were notably involved in the battles for Tarawa and Saipan in 1944 and the Battle of Iwo Jima in 1945. During the course of the war, V Corps was initially commanded by General Holland 'Howlin Mad' Smith and later by General Harry Schmidt.
By 1945, the structure of a United States Marine Corps' amphibious corps was broken down into four major subordinate commands with each of them having numerous sub-elements. The first major element of the Corps was three reinforced Marine infantry divisions. The next was the Corps artillery which was composed of a field artillery group made of three battalions of 155mm howitzers and three battalions of 155mm guns and an Antiaircraft Artillery Group made of three antiaircraft artillery battalions. The next major command was Amphibian Tractor Group which was made up of four amphibian tractor battalions and an armored amphibian tractor battalion. The final command was known as the Corps Troops and was composed of a headquarters and service battalion, administrative command, signal battalion, medical battalion, motor transport battalion, engineer battalion, reconnaissance battalion and military police battalion.
Major subordinate units
During World War II, the following major commands served under VAC:
- Holland M. Smith 25 August 1943 – 11 July 1944
- Harry Schmidt 12 July 1944 – 15 February 1946 (Deactivation)
The assault troop units of the 3rd, 4th and 5th Marine Divisions, operating under the command structure of V Amphibious Corps, earned a collective Presidential Unit Citation for actions at the Battle of Iwo Jima from 19-28 February, 1945.  The support troop units of those same Marine Divisions, also within V Amphibious Corps, earned a collective Navy Unit Commendation for the same battle.
- Marine Air-Ground Task Force
- History of the United States Marine Corps
- Organization of the United States Marine Corps
- Rottman USMC WWII OOB, p.102.
- Rottman USMC WWII OOB, p. 111.
- This article incorporates public domain material from websites or documents of the United States Marine Corps.
- Arens, Major Mark P., USMCR (1995). "Chapter 2: V Amphibious Corps". V [Marine] Amphibious Corps Planning for Operation Olympic and the Role of Intelligence in Support of Planning (Marine Corps Staff and Command College). Retrieved 13 May 2007. "Written in fulfillment of a requirement for the Marine Corps Staff and Command College."
- Rottman, Gordon L. (2002). U.S. Marine Corps World War II Order of Battle – Ground and Air Units in the Pacific War, 1939 – 1945. Greenwood Press. ISBN 0-313-31906-5.
- Drez, Ronald J. and Stephen E. Ambrose (2003). Twenty-Five Yards of War: The Extraordinary Courage of Ordinary Men in World War II. Hyperion. p. 227. ISBN 978-0-7868-8668-5. "This three division Marine force was the largest ever committed to a single battle in the history of the Corps. It would bear the title V Amphibious Corps or VAC."
- Rottman, Gordon L. and Mike Chappell (1995). US Marine Corps 1941–45. Osprey Publishing. ISBN 1-85532-497-0.