USA HISTORY

Detailed explanation-1: -Fifteen other nations also sent troops under the U.N. command. Truman did not seek a formal declaration of war from Congress; officially, America’s presence in Korea amounted to no more than a “police action.” However, the entry of the United States into the conflict signaled a reversal of policy toward Korea.

Detailed explanation-2: -It was a different kind of war. To get around the necessity of asking Congress to declare war, President Truman called it a “police action.” It was fought under the auspices of the United Nations, with the United States acting as the UN’s executive agent. Unlike World War II, the objective in Korea was not victory.

Detailed explanation-3: -In the U.S., the war was initially described by President Harry S. Truman as a “police action", as the United States never formally declared war on its opponents and the operation was conducted under the auspices of the United Nations.

Detailed explanation-4: -Moving quickly, and without seeking a declaration of war from Congress, President Truman ordered U.S. air and naval forces to attack targets north of the 38th parallel. He also authorized General MacArthur to send American ground troops from Japan to support the rapidly collapsing South Korean Army.

Detailed explanation-5: -Concerned that the Soviet Union and Communist China might have encouraged this invasion, President Harry S. Truman committed United States air, ground, and naval forces to the combined United Nations forces assisting the Republic of Korea in its defense.