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There are few regions as culturally, socially, economically, and geopolitically diverse as the Asia-Pacific. The 36 nations comprising the Asia-Pacific region are home to more than 50% of the world's population, 3,000 different languages, several of the world's largest militaries, and five nations allied with the U.S. through mutual defense treaties. Two of the three largest economies are located in the Asia-Pacific, along with ten of the fourteen smallest. The AOR includes the most populous nation in the world, the largest democracy, and the largest Muslim-majority nation. More than one third of Asia-Pacific nations are smaller, island nations, including the smallest republic in the world and the smallest nation in Asia.
United States Pacific Command (USPACOM) is one of six
geographic combatant commands defined by the Department of Defense's Unified
Command Plan (UCP). As a geographic combatant command, USPACOM is in charge of
using and integrating United States Army, Navy, Air Force and Marine Corps
forces within the USPACOM area of responsibility (AOR) to achieve U.S. national
security objectives while protecting national interests. The USPACOM AOR covers
more of the globe of any of the other geographic combatant commands and shares
borders with all of the other five geographic combatant commands. The commander
of US Pacific Command reports to the President of the United States through the
Secretary of Defense and is supported by multiple component and sub-unified
commands including: U.S. Forces Korea, US Forces Japan, U.S. Special Operations
Command Pacific, U.S. Pacific Fleet, U.S. Marine Forces Pacific, U.S. Pacific
Air Forces and U.S. Army Pacific.
The region is a vital driver of the global economy and includes the world's busiest international sea lanes and nine of the ten largest ports. The Asia-Pacific is also a heavily militarized region, with seven of the world's ten largest standing militaries and five of the world's declared nuclear nations. Given these conditions, the strategic complexity facing the region is unique.
In concert with other U.S. government agencies, USPACOM protects and defends the territory of the United States, its people, and its interests. With allies and partners, USPACOM is committed to enhancing stability in the Asia-Pacific region by promoting security cooperation, encouraging peaceful development, responding to contingencies, deterring aggression, and, when necessary, fighting to win. This approach is based on partnership, presence, and military readiness.