Medal · Soviet Union
юбилейная медаль «30 лет Советской Армии и Флота»
(opens the image page on Wikimedia Commons)Insignia image: User:WootelefPublic domainWikimedia Commons

Ribbon image: BoroduntalkPublic domainWikimedia Commons
The Jubilee Medal "30 Years of the Soviet Army and Navy" (Russian: Юбилейная медаль «30 лет Советской Армии и Флота») was a state military commemorative medal of the Soviet Union established on February 22, 1948 by decree of the Presidium of the Supreme Soviet of the Soviet Union to denote the thirtieth anniversary of the creation of the Soviet Armed Forces. Its statute was later amended by decree of the Presidium of the Supreme Soviet of the USSR of July 18, 1980.
From Wikipedia (article), under CC BY-SA 4.0.