An F-15 Eagle and an A-10 Thunderbolt II from the Air National Guard Air Force Reserve Test Center set out for morning flights during the Sentry Aloha fighter exercise at Joint Base Pearl Harbor-Hickam, Hawaii, March 18, 2015. Sentry Aloha is a large force exercise hosted by the Hawaii Air National Guard. Over 1,000 service members and 45 aircraft from seven states are participating in this iteration of the exercise. (U.S. Air National Guard photo by Senior Airman Orlando Corpuz)