U.S. Air Force Senior Airman Chris Arroyo, 736th Security Forces Squadron fire team lead, occupies a defensive fighting position during Exercise MACHETE GREEN at North West Field, Andersen Air Force Base, Guam, July 29, 2020. Exercise MACHETE GREEN was a joint effort between the Navy and the Air Force to enter into a simulated hostile environment and open an active airfield under a short-notice time frame, which includes securing defensive fighting positions, surveying the airfield to ensure operational capabilities, staging essential supplies for lasting success, and withdrawing after mission completion. (U.S. Air Force photo by Senior Airman Michael S. Murphy)