A U.S. Marine Corps UH-1Y Venom, left, and AH-1Z Viper conduct a fly-over during the 15th Marine Expeditionary Unit’s change of command ceremony at Marine Corps Base Camp Pendleton, California, Jan. 16, 2025. - A U.S. Marine Corps UH-1Y Venom, left, and AH-1Z Viper conduct a fly-over during the 15th Marine Expeditionary Unit’s change of command ceremony at Marine Corps Base Camp Pendleton, California, Jan. 16, 2025. During the ceremony, Col. Sean Dynan relinquished command of the 15th MEU to Col. Robb McDonald. (U.S. Marine Corps photo by Sgt. Patrick Katz)