Sentry Eagle An Air Force F-15 Eagle flies in formation with a WWII-era B-17 during Sentry Eagle over Crater Lake, Ore., June 24, 2022. The exercise allows pilots to train against dissimilar aircraft and to practice aerial refueling and combat operations. SHARE IMAGE: Download Image: Full Size (0.49 MB) Tags: Sentry Eagle, Air Force, Training, Oregon Air National Guard Photo By: Air Force Staff Sgt. Penny Snoozy VIRIN: 220624-Z-CT752-0959C.JPG Photo Gallery