Staff Sgt. Ethan Johnson, an explosives ordnance technician in the 119th Wing, detonates an explosive tool which had been placed on a door as Senior Airman Tyler Herlihy, a tactical air control party (TACP) Airman in the 169th Air Support Operations Squadron (ASOS), provides support as they prepare to breach a door while conducting training during Exercise Southern Strike 19 at Camp Shelby Joint Forces Training Center near Hattiesburg, Miss., Jan. 18, 2019. 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, 2019. The exercise emphasizes air-to-air, air-to-ground and special operations forces training opportunities. (U.S. Air National Guard photo by Chief Master Sgt. David H. Lipp)