WASHINGTON—The Pentagon on Thursday flight-tested a missile that had been banned under a treaty that the United States and Russia abandoned last summer. Some U.S. arms control advocates said the test risks an unnecessary arms race with Moscow.
The prototype missile was configured to be armed with a non-nuclear warhead. The Pentagon declined to disclose specifics beyond saying the missile was launched from a “static launch stand” at Vandenberg Air Force Base in California and landed in the open ocean. The Defense Department said the ballistic missile flew more than 500 kilometers.
