Two Airmen with the 332nd Expeditionary Maintenance Squadron observes the engine of an F-15E Strike Eagle as they perform pre-flight checks May 7, 2018, at an undisclosed location in Southwest Asia. The aircraft is duel purpose and can perform both air-to-air and air-to-ground-combat. It can carry most weapons in the Air Force inventory. (U.S. Air Force photo by Senior Airman Krystal Wright)