Sky Trail The 'trail' ascends as a ground-based interceptor launches from Vandenberg Air Force Base, Calif., March 25, 2019, in the first-ever salvo engagement test of a threat-representative ICBM target. The two GBIs successfully intercepted a target launched from the Ronald Reagan Ballistic Missile Defense Test Site on Kwajalein Atoll. SHARE IMAGE: Download Image: Full Size (0.48 MB) Tags: missile defense Photo By: Lisa Simunaci, Missile Defense Agency VIRIN: 190325-D-AD122-0003.JPG Photo Gallery