Hawaii Air National Guard Airmen from the 154th Aircraft Maintenance Squadron service a C-17 Globemaster III Jan.21, 2019, during exercise Southern Strike at the Gulfport Combat Readiness Training Center, Miss. Southern Strike 19 is a total force, multi-service training exercise hosted by the Mississippi Air National Guard’s Combat Readiness Training Center in Gulfport, Miss., and Camp Shelby Joint Forces Training Center near Hattiesburg, Miss. from Jan. 15 through Jan. 30. The exercise emphasizes air-to-air, air-to-ground and special operations forces training opportunities. (U.S. Air National Guard photo by Senior Airman John Linzmeier)