The U.S. 2nd Marine Division is a division of the United States Marine Corps, which forms the ground combat element of the II Marine Expeditionary Force. The division is based at Marine Corps Base Camp Lejeune, North Carolina.
The 2nd Marine Division was officially organized on February 1, 1941 by change of designation from the 2nd Marine Brigade.
During World War II, the 2nd Marine Division (Headquarters) participated in authorized operations and engagements in the Pacific Theater of Operations:
The 2nd and 8th Marines (reinforced by other units of the 2nd Marine Division) were awarded the Presidential Unit Citation while attached to the 1st Marine Division from 7 August and 4 November 1942, respectively, for the Guadalcanal operation.
The 2nd Marine Division was awarded the Presidential Unit Citation for Tarawa Atoll, Gilbert Islands, 20–24 November 1943.
The 2nd Marine Division returned to Iraq in January 2005 to relieve the 1st Marine Division in Al Anbar province in western Iraq. They remained there conducting security and stabilization operations until early 2006.
A unit citation or commendation is an award bestowed upon an organization for the action cited. Members of the unit who participated in said actions are allowed to wear on their uniforms the awarded unit citation. The 2nd Marine Division has been presented with the following awards:
| Presidential Unit Citation | |
| Navy Unit Commendation | |
| Marine Corps Expeditionary Medal | |
| American Defense Service Medal with one bronze star | |
| Asiatic-Pacific Campaign Medal with one silver Star and two bronze stars | |
| World War II Victory Medal | |
| Navy Occupation Service Medal with Asia & European clasps | |
| National Defense Service Medal with two bronze stars | |
| Armed Forces Expeditionary Medal with two bronze stars | |
| Southwest Asia Service Medal with three bronze stars | |
| Iraq Campaign Medal | |
| Global War on Terrorism Expeditionary Medal | |
| Global War on Terrorism Service Medal |