High Quality Content by WIKIPEDIA articles! The RIM-161 Standard Missile 3 (SM-3) is a ship-based missile system used by the US Navy to intercept short-to intermediate-range ballistic missiles as a part of Aegis Ballistic Missile Defense System. Although primarily designed as an anti-ballistic missile, the SM-3 has also been employed in an anti-satellite capacity against a satellite at the lower end of Low Earth orbit. The SM-3 is primarily used and tested by the United States Navy and also operated by the Japan Maritime Self-Defense Force. The Royal Netherlands Navy has already successfully tested the SM-3 on the HNLMS Tromp and may purchase them in the future.