(1) The Outbreak of the War    (5) China's Entry into War
   (2) Participating UN Forces    (6) The Retreat of UN Forces
   (3) The Incheon Landing    (7) The Dismissal of MacArthur
   (4) Korea's Unification and Crossing the 38th Parallel    (8) Establishing Armistice


  The Incheon Landing
 

Soon after the war, starting from July 15, the Incheon Landing was being mapped out. The landing was aimed at striking a blow to North Korea.
On July 15, General MacArthur suggested the Incheon Landing to the General staff Office but it was denied. The possible dispersion of forces and the geographical features of Incheon were the reasons for opposition. Rather, strengthening forces in Busan was considered a better idea.

However, General MacArthur noted that even though the tide at Incheon varies more than 9 m, 6 hours is a sufficient time for the landing to take place. He also noted that the North Korean army was concentrating its military force around Busan and thus was negligent to Incheon. He emphasized the psychological effects of quickly retaking the South Korean capital Seoul that is close to Incheon. General MacArthur did not concede his arguments and finally got approval from the president on September 8.

From the Nakdonggang, the Allied troops made a counterattack. At the same time, the US's 10th Corps consisted of the 1st navy division and the 7th Army and the 5000 marine corps of South Korea landed on Incheon's Weolmido at
  the dawn of September 15. The next day Incheon was taken back. The US Marine Corp and the South Korean Army worked together to recover Seoul. The 7th Army marched south and joined the UN forces that were heading north at Osan. This cut the North Korean troops off from each other. North Korean troops fled to the central region of the peninsula and to the mountain ranges of the east.

UN forces that landed at Incheon entered Seoul on September 26. After taking back the entire city of Seoul, a ceremony was held to congratulate the recovery on September 29. The UN forces kept on heading north along the eastern and western coasts to the 38th parallel. Thanks to the success of the Incheon landing, the course of the war changed. The number of North Korean prisoners of war amounted to 12.5 thousand at the period.