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S-25 Berkut - Wikipedia
Anti-aircraft missile system S-25: "Berkut" on guard of the capital
S-25
Berkut (special police force) - Wikipedia
S-25 Berkut - The Ancestor Of Today's Russian Air Defense Missiles
S-25 SA-1 GUILD - GlobalSecurity.org
S-25 SA-1 GUILD - GlobalSecurity.org
Soviet/Russian SAM Site Configuration Part 1: S-25/SA-1, S-75/SA-2, S ...
266mm S-25 - Weaponsystems.net