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The UGM-27 Polaris missile was a two-stage solid-fueled nuclear-armed submarine-launched ballistic missile (SLBM). As the United States Navy 's first SLBM, it served from 1961 to 1980. In the mid-1950s the Navy was involved in the Jupiter missile project with the U.S. Army , and had influenced the design by making it squat so it would fit in ...
The UGM-73 Poseidon missile was the second US Navy nuclear-armed submarine-launched ballistic missile (SLBM) system, powered by a two-stage solid-fuel rocket.It succeeded the UGM-27 Polaris beginning in 1972, bringing major advances in warheads and accuracy.
Development of the Regulus II was well under way when the program was canceled in favor of the UGM-27 Polaris SLBM (Submarine-Launched Ballistic Missile) system, which gave unprecedented accuracy as well as allowing the launch submarine to remain submerged and covert.
The missile in question, designated the UGM-27 Polaris, proved to be a success, and would usher in the age of the ballistic missile submarine as part of the nuclear triad used by both of the superpowers during the Cold War in accordance with the mutually assured destruction policy. Articles in which this image appears
Polaris missile loaded from truck to sub at Cape Canaveral, missile hatches opened on USS George Washington, missile fired on 20 July 1960, 1100 miles to its target, then 2nd missile fired. 中文（简体）： UGM-27北极星导弹 1960年7月21日首次发射。
Beginning in the late 1960s, the United Kingdom operated four Resolution-class submarines, each armed with sixteen US-built UGM-27 Polaris missiles. The Polaris missile was supplied to Britain following the terms of the 1963 Polaris Sales Agreement. This nuclear deterrent system was known as the UK Polaris programme.
UGM-27 Polaris A3 Cape Canaveral LC-25A US Navy US Navy Suborbital Missile test: 10 December: Successful Apogee: 1,000 kilometres (620 mi) 10 December: R-12 Dvina Plesetsk MVS MVS Suborbital Missile test: 10 December: Successful Apogee: 402 kilometres (250 mi) 11 December 01:00:06 UGM-27 Polaris A3 USNS Observation Island, ETR US Navy US Navy ...
The United Kingdom's Polaris programme, officially named the British Naval Ballistic Missile System, provided its first submarine-based nuclear weapons system. Polaris was in service from 1968 to 1996. Polaris itself was an operational system of four Resolution-class ballistic missile submarines, each armed with 16 Polaris A-3 ballistic missiles.