As a result of stalemated outcome of the Korean War, the Americans believed that something is wrong with the United States.
Step-by-step explanation:
Korean War outcomes were drastic which included higher causalities and china emerged with new strength but Korea remained divided as south and North Korea. With the help of US, South Korea made North Korea to retreat to its territory. Weapons which are similar in use during the World War II were used and the weapons and military aid was provided by US to South Korea.
North Korea after becoming divided started to build its military strength by getting the aim from soviet communist countries. It wanted to control South Korea because north Korea wanted to gain access to the trade markets on Japan and Asia.