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Diagram of the Aegis Combat System (Baseline 2-6). The Aegis Combat System (ACS) implements advanced command and control (command and decision, or C&D, in Aegis parlance). It is composed of the Aegis Weapon System (AWS), the fast-reaction component of the Aegis Anti-Aircraft Warfare (AAW) capability, along with the Phalanx Close In Weapon System (CIWS), and the Mark 41 Vertical Launch System
The motto in Latin: Custos Custodum Ipsorum means "Guard of the Guardians Themselves" in English. The Aegis ballistic missile defense system (Aegis BMD or ABMD), [1] also known as Sea-Based Midcourse, is a Missile Defense Agency program under the United States Department of Defense developed to provide missile defense against short and intermediate-range ballistic missiles.
The primary American defensive system, called the Aegis Combat System, is also used by the navies of Japan, Spain, Norway, South Korea, and Australia. The Aegis system has been designed to defend against mass attacks by hostile anti-ship missiles or warplanes.
The AN/SPY-1 [a] is a United States Navy passive electronically scanned array (PESA) 3D radar system manufactured by Lockheed Martin, and is a key component of the Aegis Combat System. The system is computer controlled and uses four complementary antennas to provide 360-degree coverage.
The Alaska site provides more protection against North Korean missiles or accidental launches from Russia or China, but is likely less effective against missiles launched from the Middle East. The Alaska interceptors may be augmented later by the naval Aegis Ballistic Missile Defense System or by ground-based missiles in other locations.
Aegis system equipped vessels (ASEV) or (Japanese: イージス・システム搭載艦) are a pair of ballistic missile defense (BMD) warships under construction to be operated by the Japanese Maritime Self-Defense Force (JMSDF) as dedicated sea-based BMD platforms, serving as an alternative to Japan's now-cancelled land-based Aegis Ashore BMD system.
Refinement of the initial concept of Aegis system in the 1960s continued through the 1960s and 1970s, and the Mk 41 was conceived in 1976. [2] Originally, the system was only intended to fire the RIM-66 Standard missile, but the height of the Mk 41 was increased to accommodate the larger Tomahawk missile. [2]
One potential system for this use would be an airborne laser, which was tested on the Boeing YAL-1 and was later cancelled. Other ideas are also being studied. [33] As of 2009, the only anti-ballistic missile defense system with a boost-phase capability is the Aegis Ballistic Missile Defense System.