A-35 anti-ballistic missile system
Soviet missile defence system

The A-35 anti-ballistic missile system was a Soviet military anti-ballistic missile (ABM) system deployed around Moscow to intercept enemy ballistic missiles targeting the city or its surrounding areas. The A-35 was the only Soviet ABM system allowed under the 1972 Anti-Ballistic Missile Treaty. In development as of the 1960s and in operation from June 1972 until the 1990s, it featured the nuclear-armed A350 exoatmospheric interceptor missile. The A-35 was supported by two Dunay radars (NATO reporting names: Cat House and Dog House) and the Soviet early warning system. It was followed by the A-135 in the early 1990s.
System A
The first Soviet anti-ballistic missile system was System A, which began development at Sary Shagan's Test Range A in July 1956, followed by testing starting in 1959. System A used the V-1000 missile to intercept enemy missiles. First launch of the V-1000 took place on 11 October 1957; its first successful intercept occurred on 4 March 1961, when it intercepted an R-12 missile launched from the Kapustin Yar site.
System A used the Dunay-2 radar designed by V Sosulnikov at NII-37 (which later became NIIDAR), in addition to three homing radars and an RSV-PR ABM radar (NATO: Hen Nest). The three homing radars (called RTN; NATO name Hen Egg)) were situated in an equilateral triangle with a length of 150 kilometres (93 mi).
“A-35 anti-ballistic missile system” enters the record as soviet missile defence system. Crown Archives preserves that source wording while asking what A-35, anti-ballistic and missile can confirm, complicate or overturn.
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