U.S. Marine Corps Col. Michael T. Aldridge, right, the incoming commanding officer of 1st Civil Affairs Group, Marine Corps Forces Reserves, passes the colors to Sgt. Maj. Robert K. Lusk, left, the sergeant major of 1st CAG, during a change of command ceremony at Marine Corps Base Camp Pendleton, California, May 18, 2024. A change of command ceremony is a military tradition that represents a formal transfer of authority and responsibility for a unit from one commanding officer to another. (U.S. Marine Corps photo by Lance Cpl. Mhecaela J. Watts)