What conditions and issues led to mistrust between the US And USSR thereby leading to the Cold War?

The mistrust between the US and USSR during the Cold War stemmed from ideological differences, with the US advocating for capitalism and democracy while the USSR promoted communism and a one-party state. Key events, such as the Bolshevik Revolution, the differing post-World War II visions for Europe, and the atomic bomb's development, exacerbated tensions. Additionally, the US's perceived attempts to contain communism and the USSR's expansionist policies further fueled suspicion and hostility, ultimately leading to a prolonged period of geopolitical conflict.