U.S. Air Force firefighters prepare to enter a simulated

U.S. Air Force firefighters prepare to enter a simulated tent fire at Tactical Assembly Area Young, Fort McCoy, Wis., August 16, 2016, during exercise Patriot Warrior. Patriot Warrior is the Air Force Reserve's premier contingency deployment training exercise, designed to demonstrate training ranging from bare base buildup to full operational capabilities. More than 11,000 members from the U.S. service branches and their Reserve components, including Air Force, Army, Navy, and Marines are participating alongside British, Canadian, and Saudi Arabian forces. (U.S. Air Force photo by Airman 1st Class Christopher Dyer)