The 1st Joint Mobilization Brigade disbanded in late May 2014. It previously controlled and provided host unit support to mobilizing, deploying and demobilizing reserve component units from all the U.S. military services. The unit began as the 2122st Garrison Support Unit (Army Reserve), overseeing the mobilization of about 27,000 Soldiers. The group of fewer than a dozen personnel mobilized about 15,000 soldiers within three weeks at the start of the War in Afghanistan. The unit was redesignated the 654th Area Support Group (Forward) in May 2004, and the 1st JMB in March 2007. Training and mobilization validation moved to individual units (instead of the 1st JMB) in 2011.