What was the greatest cause of tension between the United States and the Soviet union after World War II
Answers
The development of Hydrogen Bomb by the Americans, led to an arms race between the United States and Russia. While the United States were under the assumption that Russia did not possess the know-how or have access to raw materials required to build such a bomb, the Russian were quietly at work.
In August 1953, the Russians came up with their own deployable thermo-nuclear device. In 1955, they detonated a 1.6 Mega-tonne Hydrogen Bomb followed by a 58 Mega-tonne bomb in 1961.
Each country tried to stay one-up above the other in this race, with more and more powerful bombs and warheads being developed.
The United States and the Soviet Union did not trust one another.
They were on the verge of a nuclear warfare and the Americans did not approve of the USSR trying to spread communism.
At the end of the second World War both the countries actually emerged as a superpower added more amount of mistrust between the both and even today there is a great amount of tension between the both countries.