Senior Airman Ramiro Crespo, 341st Force Support Squadron customer service apprentice, participates in a search and recovery exercise June 12, 2019, at Malmstrom Air Force Base, Mont. The Airmen were required to wear personal protective equipment as they would in real life including, but not limited to, steel-toe boots or toe-caps; and various chemical, biological, radiological and nuclear warfare protective items. (U.S. Air Force photo by Staff Sgt. Magen M. Reeves)