U.S. Army National Guard Sgt. 1st Class Michael Huitema, 109th Regional Support Group detachment sergeant, center, watches U.S. Air Force Master Sgt. Erlinda Schommer, 28th Medical Support Squadron superintendent, left, perform a technique during a women’s self-defense training seminar at Ellsworth Air Force Base, S.D., March 14, 2016. Huitema taught many techniques during the seminar, including escaping chokeholds and how to react in an active shooter situation. (U.S. Air Force photo by Airman 1st Class Denise M. Nevins/Released)