U.S. Marine Corps Capt. Garrett Gundy, incoming commanding officer, Detachment D, Force Headquarters Group, Marine Forces Reserve, shakes hands with Capt. Avery Moore, outgoing commanding officer, during a change of command ceremony at Ft. Harrison, Helena, Montana, March 20, 2025. The change of command ceremony represents the official passing of authority from the outgoing to incoming commander. (U.S. Marine Corps photo by courtesy of 4th Law Enforcement Battalion)