3:3rd Marines

The 3rd Battalion, 3rd Marines ("3/3"), nicknamed "America's Battalion," is an infantry battalion of the United States Marine Corps formed in 1942 during World War II. The unit saw combat in the Pacific Theater, including the battles of Bougainville and Guam. During the Vietnam War, 3/3 participated in major operations such as Operation Starlite and Operation Hastings. In the 21st century, the battalion deployed multiple times to Iraq and Afghanistan, continuing its legacy as one of the Marine Corps’ most storied and battle-tested units.