the soviet union wanted to spread communism world wide, which was a main conflict leading to the cold war. America was very afraid of this and offered aid under the Marshall plan to help stop the spread of communism.
I will not let you spread your communism!
Oh, but watch me try!
A nuclear arms race began between the US and the soviet union because neither country could risk falling behind on technological or scientific advances in warfare lest the other attack using better resources.
No it cant be, ours is the biggest.
The United States and the Soviet Union both put an emphasis on developing better nuclear weapons.