Col. Melissa Coburn, commander of the 452nd Operations Group, March Air Reserve Base, passes the guidon to Lt. Col. Ravi Chandra, commander, 452nd Contingency Response Squadron, during an assumption of command ceremony in building 2321 here on Saturday, Oct. 27. The ceremony was attended by Chandra’s family and friends, base leadership and Team March airmen. Chandra’s appointment as commander of the 452nd CRS was effective Oct. 1, 2018. (U.S. Air Force photo by 1st Lt. Russell S. McMillan)