MARINE CORPS AIR STATION YUMA, Ariz. -- U.S. Marines with Headquarters and Headquarters Squadron (H&HS) participate in "Operation Backbone" in Yuma, Arizona, Oct. 28, 2020. Operation Backbone helps to strengthen the warrior spirit in non-commissioned officers and promote cohesion between the different sections of H&HS. The exercise consisted of multiple live fire events on the range along with several classes from various section representatives of H&HS. (U.S. Marine Corps photo by Lance Cpl. John Hall)