A ballistic missile submarine is a submarine equipped to launch submarine-launched ballistic missiles (SLBMs) with nuclear warheads. These submarines .\rbr\rbrUS Navy SSBN Submarine Documentary - submarine-launched ballistic missiles (SLBMs) US Navy SSBN Submarine Documentary - submarine-launched .\rbr\rbrUS Navy SSBN Submarine Documentary - submarine-launched ballistic missiles (SLBMs) US Navy SSBN Submarine Documentary - submarine-launched .\rbr\rbrA ballistic missile submarine is a submarine equipped to launch submarine-launched ballistic missiles (SLBMs) with nuclear warheads. These submarines .