According to this quotation, why is the United States fighting the Cold war?

To show their military force and power against Russia. The u.s. was trying to show they was the dominate military which was beginning to look like world war 3. And for a little more info about the cold war The-k 129 Russian sub was heading threw the pacific ocean on a possible course to pearl harbor and it was believed that KGB agents hijacked and the crew members triggered one of the missiles inside the sub causing it to sink.

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