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