|15th Marine Regiment|
November 26, 1918 – August 1, 1922|
October 23, 1944 – March 26, 1946
|Branch||United States Marine Corps|
|Part of||6th Marine Division|
|Major General Wilburt S. Brown|
The 15th Marines was first organized on November 26, 1918 as an infantry regiment. It was deployed to the Dominican Republic on February 26, 1919 and saw action against Dominican rebels during the American occupation of the Dominican Republic. Having been organized for possible deployment to Europe in the event that hostilities resumed, the 15th Marines remained on garrison duty in the Dominican Republic and was deactivated on August 1, 1922, and its assets were absorbed into the 1st and 4th Regiments.
The 15th Marines was reactivated as an artillery regiment on October 23, 1944 on Guadalcanal, and assigned to the 6th Marine Division. It was formed by combining Pack Howitzer Battalions from the 4th, 22nd, and the 29th Marines. They were redesignated 1st, 2nd and 3rd Battalions, respectively. The 4th Battalion was activated on November 14, 1944. The regiment saw heavy action fighting on Okinawa and the 6th Division received the Presidential Unit Citation for their actions during the battle. The Regiment was withdrawn from Okinawa after it was declared secure in July 1945 and was redeployed to Guam to prepare for the invasion of Japan. After the surrender of the Japanese, the Regiment was sent to Tsingtao, China to accept the surrender of the Japanese in that area. The 15th Marines remained in China until its deactivation on March 26, 1946.
|Headquarters and Service Battalion 15th Marines (H&S/15)|
|1st Battalion 15th Marines (1/15)||Formerly Pack Howitzer Battalion, 4th Marines. Redesignated 1/15 on October 23, 1944.|
|2nd Battalion 15th Marines (2/15)||Formerly Pack Howitzer Battalion, 22nd Marines. Redesignated 2/15 on October 23, 1944.|
|3rd Battalion 15th Marines (3/15)||Formerly Pack Howitzer Battalion, 29th Marines. Redesignated 3/15 on October 23, 1944.|
|4th Battalion 15th Marines (4/15)||Activated on November 14, 1944.|
- Harold Gonsalves - posthumous recipient of the Medal of Honor for actions during the Battle of Okinawa.
- 6th Marine Division
- 6th Marine Division on Okinawa
- Organization of the United States Marine Corps
- List of United States Marine Corps regiments
- 15th Marine Regiment History (Archived 2014-12-31)
- Gordon L. Rottman, U.S. Marine Corps World War II Order of Battle: Ground and Air Units in the Pacific War, 1939-1945, Greenwood Publishing Group, Westport, CT, 2002.
- Gordon L. Rottman, US Marine Corps Pacfic Theater of Operations 1944-45, Osprey Publishing, Oxford, 2004.
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