The 3rd Marine Division is a unit of the United States Marine Corps, established during World War II. It played a significant role in the Pacific Theater, participating in key battles such as the Battle of Guam and the Battle of Iwo Jima. The division is known for its amphibious assault capabilities and has been involved in various conflicts since its inception. Today, the 3rd Marine Division is based in Okinawa, Japan and continues to serve as a rapid-response force in the Asia-Pacific region. It is part of the larger U.S. Pacific Command and focuses on maintaining regional stability and readiness for potential crises.