Respuesta :
B. It began in 1945 at the end of WWll.
Tensions ran high after WWll between Russia and the other Allies on how Europe should be rebuilt and so an nuclear arms race began between the U.S. and the USSR to see who could build the best and most nuclear weapons.
Tensions ran high after WWll between Russia and the other Allies on how Europe should be rebuilt and so an nuclear arms race began between the U.S. and the USSR to see who could build the best and most nuclear weapons.