Role of The United States in The Korean War
The United States were allies with South Korea, and they aided them along with UN after the invasion by North Korea. They drove the North Koreans out of South Korea as well.
Prompt:
The US provided the majority of the UN military forces which drove the North Koreans out of South Korea and still stood guard along the border. I think the US played the role of the "protector." because of how they helped North Korea.