The US Army Combined Arms Center (CAC) is the force modernization proponent for unified land operations, combined arms operations at echelons above brigade (Division, Corps and Theater Army), mission command, airspace control, information operations, irregular warfare, knowledge management, personnel recovery, OPSEC, military deception, security force assistance, and the Army Profession. CAC is also the US Army’s lead organization for lessons learned, doctrine, training, education, and leader development managing the Army Leader Development Program, Army Profession Program, Army Training Support System Enterprise, Army Training and Education Management Enterprise and the Combat Training Center Program. CAC is made up of more than 32,000 Soldiers and Army Civilian Corps employees stationed throughout the United States, Europe, Korea and SW Asia at eight centers of excellence, 16 branch schools, and seven non-branch schools. The Combined Arms Center synchronizes 37 US Army schools through Army University educating and training more than 350,000 students annually, including nearly 10,000 students from 86 separate nations and over 10,000 sailors, airmen, and Marines from the Joint Force.
While CAC's physical footprint is finite...the influence created from the collective efforts of it's parts is not.