Answer: The answer would be ''Mobilization''.
Explanation: The US army was a force that was mobilized considering the fact that many young men were needed for the war against the opposing forces which would have brought upon an end to the world as the people knew it.
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Explanation:
John F. Kennedy's speech had a significant impact mainly on young voters, as the president was assertive in saying words that invited young people to work for the country, as there is a saying that young people are the future of the nation, so the the president's speech gave rise to a vision of hope, unity and integration in young people, which brings a feeling of patriotism across the country and the freedom to pursue dreams through the work and joint action of the people and especially the young people to build a country worthy and fair for all.