Operation Courageous

Map of the operation.

Date	March 23–28, 1951
Location	Between Han River and Imjin River
Result	American and South Korean victory

Belligerents

United States

Republic of Korea

People's Republic of China

Democratic People's Republic of Korea

Commanders and leaders

Matthew Ridgway

Operation Courageous was a military operation performed by the United States Army during the Korean War designed to trap large numbers of Chinese and North Korean troops between the Han and Imjin Rivers north of Seoul, opposite the South Korean I Corps. The intent of Operation Courageous was for I Corps, which was composed of the U.S. 25th and 3rd Infantry Divisions and the Republic of Korea (ROK) 1st Infantry Division, to advance quickly on the North Korean and Chinese troops and reach the Imjin River with all possible speed.

As a first step in the attempt to block and attack the North Korean I Corps, General Matthew Ridgway on March 21, 1951, ordered his own I Corps to move forward to line Cairo, which he extended southwestward across General Lincoln Milburn's zone through Uijongbu (37°43′40″N 127°3′3″E / 37.72778°N 127.05083°E / 37.72778; 127.05083) to the vicinity of Haengju (37°37′49″N 126°46′11″E / 37.63028°N 126.76972°E / 37.63028; 126.76972 (Haengju)) on the Han River. At points generally along this line six to ten miles (10–16 km) to the north, Lincoln Milburn's patrols had made some contact with the North Korean I Corps west of Uijongbu and the Chinese 26th Army to the east. Milburn was to occupy line Cairo on March 22, a day ahead of the airborne landing at Munsan-ni, and wait for Ridgway's further order to continue north.

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