AUSA is a private, non-profit educational organization that supports America's Army - Active, National Guard, Reserve, Civilians, Retirees and family members.

AUSA Chapters worldwide develop programs and activities that provide community support for America's Army through individual and corporate members.

Through the Institute of Land Warfare (ILW), AUSA extends it's influence by informing and educating its members and the American public on the critical nature of land forces and the importance of the United States Army. The Japan Chapter supports mainland Japan and Okinawa.