U.S. Navy Ballistic Missile Submarine (documentary)-(SSBN)
A ballistic missile submarine is a submarine equipped to launch submarine-launched ballistic missiles (SLBMs) with nuclear warheads. These submarines became a major weapon system in the Cold War because of their nuclear deterrence capability. They can fire missiles thousands of kilometres from their targets, and Acoustic quieting makes them very difficult to detect (see acoustic signature). Their deployment has been dominated by the United States and the Soviet Union / Russia, with smaller numbers in service for France, the United Kingdom, China and India.
