USA HISTORY

Detailed explanation-1: -The United States came to the aid of South Korea at the head of a United Nations force composed of more than a dozen countries. Communist China joined North Korea in the war in November 1950, unleashing a massive Chinese ground attack against American forces. The Soviet Union also covertly supported North Korea.

Detailed explanation-2: -The U.S.-ROK Mutual Defense Treaty, signed in 1953 at the end of the Korean War, commits the United States to help South Korea defend itself, particularly from North Korea (officially the Democratic People’s Republic of Korea, or DPRK). Approximately 28, 500 U.S. troops are based in the ROK.

Detailed explanation-3: -South Korea has a long military alliance with the United States, aiding the U.S. in every war since the Vietnam War, and most recently during the Iraq War. At the 2009 G20 London summit, U.S. President Barack Obama called South Korea “one of America’s closest allies and greatest friends."

Detailed explanation-4: -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.

Detailed explanation-5: -Allies such as Australia, Japan, and the United Kingdom, and regional actors such as the Association of Southeast Asian Nations (ASEAN) tended to interpret South Korean regional strategy as focused more on the Korean Peninsula and Northeast Asia.