U.S. Air Force Senior Airman James Bradshaw, 31st Logistic Readiness Squadron individual protective equipment journeyman, exchanges an individual’s gas mask, during Inspection Maroon Excavator, May 6, 2015, at Aviano Air Base, Italy. During the inspection, several personnel were required to exchange their masks for newer ones. (U.S. Air Force Senior Airman Areca T. Wilson/Released)