To identify the sentences of the speech related to the theme of the Cold War, we must know what this historical event was about and some of its main characteristics.
The Cold War was a dispute between the Soviet Union and the United States for superiority. This conflict was characterized by not having direct armed confrontations between the two nations, but instead focused on being an arms and technological competition between 1945 and the end of the 1980s.
According to the above, it can be inferred that everything that refers to the influence of the Soviet Union and the development of the United States can be referenced in Kennedy's speech as topics on the Cold War.
Note: This question is incomplete because the speech is missing. However I can answer it based on my general prior knowledge.
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