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SM-3
The RIM-161 Standard Missile 3 (SM-3) is a ship-based surface-to-air missile used by the United States Navy to intercept ballistic missiles as a part of Aegis Ballistic Missile Defense System. With the Block IIA's range of 1,200 km, the SM-3 is the second longest-ranged anti-ballistic of the US Missile Defense Agency, behind the Ground-Based Interceptor. 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.
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Peak article volume on 2026-04-04.