The U.S. Missile Defense Agency, in cooperation with the U.S. Navy, successfully conducted Flight Test Aegis Weapon System 31 Event 1a (FTM-31 E1a). The test demonstrated the capability of a ballistic missile defense (BMD)-configured Aegis ship to detect, track, engage, and intercept a medium-range ballistic missile (MRBM) target in the terminal phase of flight utilizing the Standard Missile–6 (SM-6) Dual II with Software Upgrade (SWUP) in a single salvo of two interceptors.
