The incoming commanding officer of Marine Wing Headquarters Squadron 3 (MWHS-3), 3d Marine Aircraft Wing (MAW), Lt. Col. Vincent J. Welch, addresses U.S. Marines, Sailors and civilians during a change of command ceremony on Marine Corps Air Station Miramar, Calif., July 2, 2015. The change of command ceremony is a tradition in the Marine Corps that demonstrates the passing of authority from the outgoing commanding officer to the incoming commanding officer. (U.S. Marine Corps photo by Cpl. Darien J. Bjorndal, 3rd Marine Aircraft Wing Combat Camera/Released)