The Oregon Air National Guard's Combat Operations Group held an official change of command ceremony during the mobilization ceremony of more than 80 Airmen with the 116th Air Control Squadron at the Portland Air Guard Base in Portland, Ore., Mar. 4. The Airmen of the 116th ACS, which is a component of the Combat Operations Group, will deploy to the Middle East in support of Air Forces Central (CENTAF), where they will perform Air Battle Management missions for four months. From left to right; outgoing COG Commander Lt. Col. Gregor Leist, incoming COG Commander Lt. Col. Matthew Andrews, and Oregon Air National Guard Commander Brig. Gen. Steven Gregg (far left). (U.S. Air Force photo by Tech. Sgt. John Hughel, 142nd Fighter Wing Public Affairs).