Why did United States affect the outcome of the Civil War in Korea

yes it did

Explanation:

The impact of the Korean War on the Economy of the United States refers to the ways in which the American economy was affected by the Korean experience from 1950 to 1953. While the cost of the Korean War was less significant than that of World War II, it still changed the structure of the American growth as a result of its financing. The Korean War boosted GDP growth through government spending, which in turn constrained investment and consumption. While taxes were raised significantly to finance the war, the Federal Reserve followed an anti-inflationary policy. Though there was a large increase in prices at the outset of the war, price and wage controls ultimately stabilized prices by the end of the war. Consumption and investment continued to grow after the war, but below the trend rate prior to the war.

Answer:Armistice ends the Korean War. After three years of a bloody and frustrating war, the United States, the People's Republic of China, North Korea, and South Korea agree to an armistice, bringing the Korean War to an end. The armistice ended America's first experiment with the Cold War concept of "limited war."