Unconventional Russia

The aft part of the Poseidon nuclear-powered torpedo is shown in this screen capture from a video released by the Russian  Ministry of Defense. The area around the propeller has been blurred out. The weapon, part of Moscow's growing nuclear  capabilities, is designed to travel very long distances to attack coastal infrastructure, such as naval bases with a nuclear warhead. Nations that believe they are falling behind in military power often turn to unconventional means to deter threats...