MARINE CORPS AIR STATION YUMA, Ariz. -- U.S. Marines assigned to Marine Corps Air Station (MCAS) Yuma Headquarters & Headquarters Squadron (H&HS) receive their blood stripes during a Blood Stripe Ceremony at MCAS Yuma Ariz., May 1, 2019. The blood stripe honors the blood that was shed by Marine officers and noncommissioned officers (NCO) during the Battle of Chapultepec in 1847. The blood stripes are worn on the trousers of NCOs Staff NCOs, and officers in remembrance of those who courageously fought in the battle. (U.S. Marine Corps photo by Lance Cpl. Joel Soriano)