Summary: The M65 280mm Motorized Heavy Gun, known as “Atomic Annie,” was a Cold War-era nuclear cannon capable of firing a 15-kiloton nuclear shell. -Introduced in 1952, it was transported by two 4×4 ...

The nuclear era was ushered in by the United States on July 16, 1945 with the successful test of a nuclear bomb in Los Alamos, New Mexico. The military would drop the first nuclear weapons in less ...