The 5th Marine Division was a unit of the United States Marine Corps formed during World War II. Established in 1943, it played a crucial role in the Pacific Theater, particularly in the Battle of Iwo Jima in 1945. The division was known for its fierce combat and significant contributions to the Allied victory in the war. The division consisted of several regiments, including the 28th Marine Regiment and the 27th Marine Regiment. After World War II, the 5th Marine Division was disbanded, but its legacy continues to be honored by the Marine Corps and veterans' organizations.