What were the roots of the cold war? What ideas and policies drove american policy?

Question

What events intensified the cold war in both eastern europe and asia from 1945 to the korean war?
Answer with containment policy, and the tension over Germany, Eastern Europe, and china.

Answer 1

The roots of the cold war are to be found in both WW II and also in the communist revolution of 1917 in Russia.

The events that intensified it included the building of the Berlin Wall, the Berlin airlift, the uprising in Hungary, the Korean War, the Cuban Missile Crisis, the War in Vietnam, the launching of Sputnik, the Rosenberg trials, and nuclear testing.

USSR's expansion and USA's attempt at containment off-set this.