Master Sgt. Eric Halus, 919th Force Support Squadron, listens on how to disassemble the M-50 gas mask during a familiarization class during the 919th Special Operations Wing’s first four-day training weekend. Training classes, such as gas mask, self-aid and buddy care and law of armed conflict were offered April 1 to ensure Airmen were able to accomplish as much training as possible. (U.S. Air Force photo/Tech. Sgt. Samuel King Jr.)