U.S. Forces Japan

United States Forces Japan 在日米軍
USFJ
Country	Japan  United States
Nickname(s)	USFJ

The United States Forces Japan (USFJ) (在日米軍^?, Zainichi Beigun) is an active subordinate unified command of the United States Pacific Command (USPACOM). It was activated at Fuchū Air Station, Tokyo, Japan on 1 July 1957 to replace the Far East Command (FEC). USFJ is commanded by the Commander, U.S. Forces, Japan (COMUSJAPAN). COMUSJAPAN is also the Commander, Fifth Air Force. At present, USFJ is headquartered at Yokota Air Base, Tokyo, Japan.

COMUSJAPAN, plans, directs and supervises the execution of missions and responsibilities assigned to him by the U.S. Commander in Chief, Pacific (USCINCPAC). He establishes and implements policies to accomplish the mission of the United States Armed Forces in Japan. He is responsible for developing plans for the defense of Japan, and he must be prepared if contingencies arise, to assume operational control of assigned and attached U.S. forces for the execution of those plans.

As USCINCPAC's resident representative, COMUSJAPAN supports the Security Treaty and administers the Status of Forces Agreement (SOFA) between the United States and Japan. He is responsible for coordinating various matters of interest with the service commanders in Japan. These include matters affecting US-Japan relationships among and between Department of Defense (DOD) agencies; DOD agencies and the U.S. Ambassador to Japan; and DOD agencies and the Government of Japan (GOJ).

Under the Treaty of Mutual Cooperation and Security between the United States and Japan, the United States is obliged to protect Japan in close cooperation with the Japan Self-Defense Forces for maritime defense, ballistic missile defense, domestic air control, communications security (COMSEC) and disaster response operations.

...
Wikipedia