Who was most responible for the cold war, the united states or soviet union

The Cold War was caused by the military expansionism of Stalin and his successors. The American response… was basically a defensive reaction. As long as Soviet leaders clung to their dream of imposing Communism on the world, the West had no way (other than surrender) of ending the conflict.

Go Soviet Union!!!

answer; (a) he was a u.s senator for 38 years;