Aegis Ballistic Missile Defense

The Aegis Ballistic Missile Defense System (Aegis BMD or ABMD) is a United States Department of Defense Missile Defense Agency program developed to provide missile defense against short to intermediate-range ballistic missiles. It is part of the United States national missile defense strategy. Aegis BMD (also known as Sea-Based Midcourse) is designed to intercept ballistic missiles post-boost phase and prior to reentry.

It enables warships to shoot down enemy ballistic missiles by expanding the Aegis Combat System with the addition of the AN/SPY-1 radar and Standard missile technologies. Aegis BMD-equipped vessels can transmit their target detection information to the Ground-Based Midcourse Defense system and, if needed, engage potential threats using the RIM-161 Standard Missile 3 (SM-3) mid-course interceptors and the RIM-156 Standard Missile 2 Extended Range Block IV (SM-2 Block IV) or RIM-174 Standard Extended Range Active Missile (SM-6) terminal-phase interceptors. Aegis BMD does not have the ability to intercept ICBMs, although future versions may allow limited intercept capability.

The current system uses the Lockheed Martin Aegis Weapon System and the Raytheon Standard missile. Notable subcontractors and technical experts include Boeing Defense, Space & Security, Alliant Techsystems (ATK), Honeywell, Engility, Naval Surface Warfare Center, SPAWAR Systems Center, Johns Hopkins University Applied Physics Laboratory (JHU/APL), and the Massachusetts Institute of Technology Lincoln Laboratory (Lincoln Lab).

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