Final answer:
Eastern Europe underwent significant changes after World War II, with the spread of communism and the establishment of one-party communist satellite states. Churchill coined the term 'iron curtain' to describe the division between Western and Eastern Europe.
Step-by-step explanation:
According to Winston Churchill, Eastern Europe underwent significant changes after World War II. Churchill coined the term 'iron curtain' to describe the division between Western and Eastern Europe. Communist parties gained power and control in several Eastern European countries, such as Czechoslovakia and Hungary, creating one-party communist satellite states closely aligned with the Soviet Union. Churchill expressed concern about the loss of freedom and the rise of totalitarian control in Eastern Europe.