How did Communism affect Central Asia?

What pact signed on 1949 reinforce that the united states would not return to an isolationist policy

One of the observations by someone who was present for roosevelt's speech was, "its clarity, logic, and sincerity struck us." quote one example from the text that you would describe as clear, logical, or sincere. explain the language in your chosen quote correctly, and tell why it can be considered clear, logical, or sincere.

Why might the greeck city states have an advantage over the persians