The Soviet Nuclear Battle Mole: An Underground Cold War Battleship?

During the Cold War arms race, both the US and USSR were testing top-secret, cutting-edge technologies that seemed beyond belief to deliver nuclear warheads effectively to the other side. The goal was to strike as quickly, quietly, and as devastatingly as possible. To accomplish this, in 1964 the Soviets began developing an audacious plan that turned their focus to a most unlikely place. While US attention was trained upwards towards aerial superiority, the USSR would instead target the ground beneath their feet. Underground, in fact… with a brand-new experimental vehicle nicknamed the "Battle Mole."