Final answer:
In his speech, Winston Churchill likened communism to an 'iron curtain,' symbolizing the division between Communist Eastern Europe and Western democracies after World War II.
Step-by-step explanation:
The Prime Minister of the United Kingdom, Winston Churchill, likened communism to a iron curtain. The iron curtain symbolized the profound and divisive ideological barrier that emerged between Western democracies and Communist-controlled Eastern Europe following World War II. In March 1946, Churchill delivered a speech that famously declared, "From Stettin in the Baltic to Trieste in the Adriatic, an iron curtain has descended across the Continent." This metaphor became a cornerstone in Cold War rhetoric, encapsulating the separation and the growing tension between the two blocs, characterized by suspicion, and lack of free communication or exchange.