AirSea Battle is an integrated battle doctrine that forms a key component of the military strategy of the United States. The doctrine became official in February 2010, and was renamed to Joint Concept for Access and Maneuver in the Global Commons (JAM-GC) in 2015.

The first island chain refers to the first chain of major Pacific archipelagos out from the East Asian continental mainland coast. It is principally composed of the Kuril Islands, the Japanese archipelago, the Ryukyu Islands, Taiwan (Formosa), the northern Philippines, and Borneo, hence extending all the way from the Kamchatka Peninsula in the northeast to the Malay Peninsula in the southwest. The first island chain forms one of three island chain doctrines within the island chain strategy in the U.S. foreign policy.