Astral Glare An Air Force F-35A Lightning II pilot prepares his helmet during Exercise Astral Knight at Aviano Air Base, Italy, June 3, 2019. U.S. forces trained with service members from Italy, Croatia and Slovenia during the exercise to demonstrate the capabilities of the U.S. integrated air and missile defense system. SHARE IMAGE: Download Image: Full Size (1.76 MB) Tags: training, exercises, air force, partnerships, astral knight Photo By: Air Force Tech. Sgt. Jim Araos VIRIN: 190603-F-UP786-079.JPG Photo Gallery