The document discusses key events and speeches surrounding the onset of the Cold War, including Stalin's 'Bolshoi' speech and Churchill's famous 'Fulton' speech, which highlighted the ideological divide between the USA and USSR. It outlines how these speeches, combined with differing beliefs, historical resentments, and specific events such as the Yalta and Potsdam conferences, contributed to escalating tensions and mistrust. The narrative emphasizes how both superpowers' conflicting aims and mutual suspicion paved the way for prolonged hostility, ultimately solidifying the divide known as the 'Iron Curtain.'