Colonel <PERSON>, former 615th Contingency Response Wing commander, prepares to transfer command of his units to Colonel <PERSON>, 621 CRW, during the inactivation ceremony 615 CRW, May 29, 2012, at Travis Air Force Base, Calif. The 615 CRW ceased its operations as a sister wing, ending seven years of mobility excellence. The inactivation ceremony also included the transfer of command of the two contingency response groups and one contingency operations group to the 621st Contingency Response Wing, headquartered at Joint Base McGuire-Dix-Lakehurst, N.J. (U.S. Air Force Photo / <PERSON>. <PERSON>)