"First Strike" systems are those which either preserve a fatal second strike component, or entail independent & undetectable first strike systems. '''"SLBMs"'''', or submarine-launched ballistic missiles, are one time of first strike system employed heavily by the United States. The USSR, in the Cold War, employed '''"RLBMs"''', or rail-mounted ballistic missiles, which is to say that the USSR would use their massive railway system to furtively move and conceal a potent first strike or deterrent system. | "First Strike" systems are those which either preserve a fatal second strike component, or entail independent & undetectable first strike systems. '''"SLBMs"'''', or submarine-launched ballistic missiles, are one time of first strike system employed heavily by the United States. The USSR, in the Cold War, employed '''"RLBMs"''', or rail-mounted ballistic missiles, which is to say that the USSR would use their massive railway system to furtively move and conceal a potent first strike or deterrent system. |