SSBM (Submarine-launched ballistic missile)

SSBM stands for Submarine-launched Ballistic Missile, a weapon carried by submarines designed to deliver nuclear or conventional payloads over long distances. These missiles are launched from underwater submarines, making them difficult to detect and providing strategic deterrence. Once launched, they follow a ballistic trajectory through the atmosphere to reach their targets, similar to land-based missiles. SSBMs enhance national security by offering a second-strike capability—meaning a country can retaliate even if its land-based missile silos are destroyed—thus playing a key role in maintaining nuclear deterrence and strategic stability.