• Truman’s dislike of Stalin

• USSR’s fear of the American’s atomic bomb

• USSR’s dislike of capitalism

• USSR’s actions in the Soviet zone of Germany

• America’s refusal to share nuclear secrets

• USSR’s expansion west into Eastern Europe + broken election promises

• USSR’s fear of American attack

• USSR’s need for a secure western border

• USSR’s aim of spreading world communism

This feeling of suspicion lead to mutual distrust and this did a great deal to deepen the Cold War.