USARJ meaning in Governmental ?

United States Army, Japan (USARJ) is a Major Command of the United States Army. It consists of operating port facilities and a series of logistics installations throughout Honshū and Okinawa. USARJ participates actively with the Japan Ground Self-Defense Force in bilateral training exercises and the development of bilateral plans. It commands and supports United States Army assigned units, attached units, and augmentation forces and employs these forces in support of the commander. USARJ maintains and strengthens the credibility of deterrent power in the Pacific through maintenance of defense facilities, war reserves and operational project stocks. USARJ is headquartered at Camp Zama.

As the Army Component Command to United States Forces Japan (USFJ) and as a Major Subordinate Command of United States Army Pacific (USARPAC) , United States Army Japan (USARJ)/I Corps (Forward) is responsible to provide support of Article V (Defense of Japan) and VI (ensuring regional stability) of the Mutual Security Treaty (MST). It serves as a forward stationed Army command and control headquarters; supports regional security cooperation activities with the Japan Ground Self Defense Force (JGSDF) for the purpose of contributing to the security of Japan and maintenance of peace and security in the Far East; provides communities of excellence and installation operations that support Soldiers, Civilians, and their Families.