U.S. Pacific Command

U.S. Pacific Command USPACOM the oldest of the U.S. unified commands and the unified command with the largest area of responsibility, U.S. Pacific Command (USPACOM) was established on January 1, 1947, and is commanded by a U.S. Navy four-star admiral (CINCUSPACOM) from headquarters at Pearl Harbor, Oahu, Hawaii. The area for which CINCUSPACOM is responsible covers over 100 million square miles from the U.S. west coast to the east coast of Africa and from the Arctic to the Antarctic (less a part of the Pacific Ocean off South America under U.S. Southern Command and a part of the Indian Ocean and Arabian Sea under U.S. Central Command) and over half the world's population. CINCUSPACOM commands four subordinate unified commands (U.S. Forces Korea [USFK]; U.S. Forces Japan [USFJ]; Alaskan Command; and Special Operations Command, Pacific [USSOCOMPAC]) and four component commands (U.S. Army Pacific [USARPAC]; U.S. Pacific Fleet [PACFLT]; U.S. Pacific Air Forces [PACAF]; and Marine Forces Pacific) as well as two joint task forces (Joint Interagency Task Force West and Joint Task Force Full Accounting).