The Soviets introduced this submarine class in 1967 to counter the thermonuclear Polaris missiles used by the Americans in their SSBNs. Although the K-219 was at the cutting edge of Soviet ...

About 700 miles off the coast of Bermuda, the Soviet Yankee-class ballistic missile submarine K-219 was in serious trouble. The seal of one of its missile tubes had failed, mixing seawater with ...