Answer:
The Lend Lease Act was initiated to, as the poster Uncle Sam holds, to support the US's allies in their war effort. "Short of War" is used to describe that the US economically was already in the war, as they provided loans, created military hardware and equipments, and heavily invested in their allies. The only thing holding them out was the public opinion, and the investment of American lives nonvoluntarily. The left side is used to suggest the public opinion, and how there were sentiments on both sides for the argument. In essence, Uncle Sam is trying to appease both sides in supporting logistically the Allies, while not forcing US men into the warfront.
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in what aspect? it depends on what you are talking about

British troops captured all of the colonists’ ammunition.
The question is asking to choose among the following choices that states the democratic concept evident in the excerpt, base on my research and further analysis, I would say that the answer would be in letter A. division of power. I hope you are satisfied with my answer and feel free to ask for more
I believe Kennedy implies this because starting a nuclear war would in the end kill everybody and their would be absolutely no reason to do one.
<em>Hope this helps, Kam</em>