The Combat Aviation Brigade, 101st Airborne Division is a Combat Aviation Brigade (CAB) of the United States Army. It was first organized in July 1968 as an aviation group and stands as the most decorated aviation unit in the United States Army. It was redesignated an aviation brigade in 1986. It has served in almost every single military operation (combat, peacekeeping, and humanitarian) since the Vietnam War. In support of the Global War on Terror, the CAB has distinguished itself as the military's premiere combat aviation unit during its two deployments to Iraq (2003 and 2005) and five deployments to Afghanistan (2002, 2007, 2010, 2012, and 2015). The brigade has flown hundreds of thousands of hours during these combat tours, transporting millions of troops around the battlefield and pr