What is the best explanation for Democracy?

Need will give brainliest which of the following was the most significant aspect of revel's election to the senate?

Where did the term “iron curtain” originate? the warsaw pact used the term iron curtain as a code word for communism. in a 1946 speech, british prime minister winston churchill said an iron curtain had fallen across the continent of europe. while visiting western europe in 1946, u.s. president harry truman commented that the mountains there looked like iron curtains. russian general secretary joseph stalin instructed citizens of eastern europe to hang iron curtains over their windows to protect themselves from stray bullets.

The data in the timeline best support the conclusion that the united states supplied arms and gave other support to the allies in order to