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A. He is addressing nuclear weapons and the Cold War.
B. There is heavy tension between the United States and the Soviet Union. By referencing “both sides,” Kennedy shows his audience the similar burdens faced by both the United States and the Soviet Union as a result of the war, and attempts to dispel some of the animosity that was prevailing at the time.

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a. Himself, but as the face of the collective American people.
b. They’re credible in that they’d be easy to technically fulfill. None of them have quantitative measures attached to them, and they’re surrounded by subjective language. For example, “to convert our good words into good deeds” (284) does not have any specific words or deeds mentioned. It would be really easy to say this promise was technically fulfilled without much effort on the United States’ part.

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His vision for the future draws on the past. Even when he talks about the “new generation of Americans” (284), he connects them to the “first revolution” (284) that we fought for our liberty. He believes “each generation of Americans” has “been summoned to give testimony to its national loyalty” (286), connecting his generation to the current one through their love for their country and their dedication to serving it.

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Freedom is a mutable word. For some, freedom means the right to behave in whatever way they want, but for Kennedy, freedom seems to mean acting in a way that furthers the goals of the American government. Freedom, in this speech, means loyalty.