The United States would have negotiated more troops.
Explanation:
After the five years of the partition of the Korean island, the North Korea communist leader Kim Il Sung decided to attempt reunification of the Korean island by the use of military power.
On 1950 North Korea launched the surprised invasion on South Korea, United States believed that the North Korean invasion was back up by the soviet union as they are supporting their communist ally, following the containment policy the United States first held the meeting in UNSC by advocating for the coalition should be sent to support South Korea.
An American led coalition forces were sent to Korea to support South Korea, soon American led coalition to start taking back those territories which were captured by North Korea and drove them back to the 38th parallel border.
Later in 1950 the American forces were neared to china's Border in fear to get invaded by the American forces Chinese sent ten thousand troops and supported the North Korean forces and drove back American forces to the 38th parallel border.
Since then United states try to demonstrate global leadership negotiated to increase troops in South Korea to reduce the spread of communism.
