Air Force Aborts ICBM Test After Problem on the Ground An Air Force Global Strike Command unarmed Minuteman III intercontinental ballistic missile launches during an operation test at 11:49 p.m. PST, Feb. 23, 2021, at Vandenberg Air Force Base, Calif. (Brittany E. N. Murphy/U.S. Space Force) 5 May 2021 The U.S. Air Force aborted the test launch of an unarmed Minuteman III intercontinental ballistic missile, or ICBM, from Vandenberg Air Force Base, California, after an undisclosed issue on the ground, the service announced Wednesday. The incident is under investigation, Air Force Global Strike Command, which oversaw the launch, said in a release.