644th Anti-Aircraft Missile Regiment

644-й зенитно-ракетный полк

Military Unit: 71548

Activated 1953 in Dmitrov, Moscow Oblast - initially as the 1947th Anti-Aircraft Artillery Regiment for Special Use and from 1955 as the 644th Anti-Aircraft Missile Regiment for Special Use.

1953 to 1983 equipped with 60 S-25 (SA-1) launchers:

In 1967 a S-125 (SA-3) battalion was added to the regiment - 56 29 01N, 37 26 39E (Moscow SAM site E36-3)

1983 converted to the S-300PT (SA-10), and was reduced to an independent Anti-Aircraft Missile Battalion of the 658th Anti-Aircraft Missile Regiment.