“The dangers are great. Make no mistake about it. Behind the…

“The dangers are great. Make no mistake about it. Behind the North Koreans and Chinese Communists in the front lines stand additional millions of Chinese soldiers. And behind the Chinese stand the tanks, the planes, the submarines, the soldiers, and the scheming rulers of the Soviet Union. Our aim is to avoid the spread of the conflict.The course we have been following is the one best calculated to avoid an all-out war. It is the course consistent with our obligation to do all we can to maintain international peace and security. ..If the Communist authorities realize that they cannot defeat us in Korea, if they realize it would be foolhardy to widen the hostilities beyond Korea, then they may recognize the folly of continuing their aggression. A peaceful settlement may then be possible. The door is always open….”                                           –Harry S. Truman, 1951The doctrine articulated by President Truman in the above speech is: