On 25 June 1950, the
Army of North Korea crossed the
38th Parallel and invaded
South Korea, overrunning and destroying large elements of the
Republic of Korea Army; within three days,
North Korea had captured
Seoul. On 30 June, the United States sent
Air Force,
Navy, and
Marine troops, along with a 1,000 man Army battalion from the
24th Infantry Division and advisers from the 1st Cavalry Division to support the ROK Army. On 18 July, the 1st Cavalry Division was ordered to Korea and landed at
Pohang-dong, 80 miles north of
Pusan, and 25 miles south of the
communist forces. The 5th Cavalry quickly marched on
Taejon and was deployed into battle position by 22 July. The next day, the men received their baptism by fire. The
8th Cavalry Regiment was swarmed by North Korean troops and the 1-5 Cavalry was sent to fill in the line. On 24 July, F Company moved to assist the overwhelmed 1-5 Cavalry on their right flank, but the numbers of North Korean troops was too much for the troopers. Only 26 men from Companies B and F escaped alive to friendly territory. Over the next few days, a defensive line was formed at
Hwanggan, and the 5th Cavalry relieved elements of the battered
25th Infantry Division on the line. This line became known as the
Pusan Perimeter, and the troopers held on for over 50 days against unrelenting North Korean attacks. On 9 August, 1-5 Cavalry bore the brunt of a massive enemy attack of five divisions near
Taegu. Troopers of the 5th and 7th Cavalry Regiments used artillery and air support to defeat the North Koreans, and seized Hill 268, "
Triangulation Hill," accounting for 400 enemy dead. The 5th Cavalry Regiment withstood two more large attacks, but held the perimeter. Pusan became a vital staging port for
United Nations troops and materiel, and thanks to the efforts of the troops on the perimeter, enough time had been gained that now the defenders outnumbered the attackers. On 17 August, after a battle with North Korean troops, a mortar unit from H Company, 5th Cavalry was forced to surrender. The men were tied up, and 42 were shot and killed and 4-5 more were wounded; this became known as the
Hill 303 massacre. When
Operation Chromite was launched at
Inchon, pressure was relieved from the 1st Cavalry Division positions, allowing them to take the offensive. On 26 September 1950, the 5th Cavalry Regiment crossed the
Naktong River and advanced to
Sangju,
Hamhung, and Osan-dong. The regiment then seized Chongo, Chochiwan, and Chouni from the reeling enemy. On 2 October, the regiment was ordered to establish a bridgehead across the
Imjin River, and by 9 October, they had pushed north of the 38th Parallel. On 12 October, as the 5th drove toward the enemy capital, C Company was fighting North Korean forces for control of Hill 174. During the battle one trooper entered an enemy foxhole he thought to be unoccupied. The man was wounded, but his platoon leader, 1LT
Samuel S. Coursen, ran to his rescue. Disregarding his own safety, 1LT Coursen engaged in hand-to-hand combat until he was killed. When his body was recovered, seven enemy dead lay in the foxhole. 1LT Coursen saved his soldier's life at the cost of his own and received the Medal of Honor. The 5th Cavalry entered
Pyongyang, North Korea's capital, on 19 October and was the first American unit to do so. On 25 October 1950, Communist
Chinese forces intervened and attacked in force across the
Yalu River into Korea. On 24 November, GEN MacArthur ordered the 1st Cavalry Division back to the front from its reserve positions to counterattack. Despite this, UN forces fell back and executed an ignominious retreat in the face of overwhelming numbers of Chinese and the bitter cold of the Korean winter. On 25 January 1951, the 5th Cavalry Regiment moved with the rest of the
Eighth Army to counterattack, and advanced 2 miles per day despite fierce resistance and extreme weather. On the night of 29–30 January, A Company, 1-5 Cavalry was fighting the Chinese for control of Hill 312. Here, 1LT
Robert M. McGovern led his platoon into battle despite heavy wounds, throwing back enemy grenades and knocking out machine guns before he was fatally wounded. 1LT McGovern would receive the Medal of Honor. ., Co. F, 5th Cavalry Regiment, 1st Cavalry Division, although suffering from severe neck and face wounds as a result of an exploding Chinese grenade, braces himself upright between two
Jeeps and refuses to leave until he has finished directing first aid treatment and evacuation of wounded men of his company. 22 February 1951. On 14 February, the 5th Cavalry Regiment received word that the
2nd Infantry Division's 23rd Infantry Regiment and
French Battalion were trapped at
Chipyong-ni. The troopers formed a rescue force called Task Force Crombez, and set out with
M4A3 Sherman and
M46 Patton tanks (painted with tiger stripes) at once. The sight of these fearsome tanks sent the Chinese running from their entrenched positions, allowing the tanks and troopers of L Company, 5th Cavalry, to cut them down in the open. On 15 February 1951, TF Crombez broke through the enemy perimeter and relieved the forces inside, ending the standoff. The
Battle of Chipyong-ni has been called "the
Gettysburg of the Korean War", as it signified the high-water mark of the Chinese invasion. Once the dynamic attacks and counterattacks by UN and Chinese forces were spent, the 5th Cavalry Regiment was then part of the "see-saw" fighting against the Communists for control of strategic hills and ridges across Korea. This static warfare was costly and frustrating. During one of the UN major fall campaigns, on 28 October 1951, G Company, 5th Cavalry was engaged in a desperate fight for control of Hill 200 against the Chinese. The American assault stalled until 1LT
Lloyd L. Burke charged forward and knocked out two enemy bunkers with grenades and his
M1 Garand. On his third charge, he caught enemy grenades in midair and hurled them back at the Chinese. 1LT Burke captured an enemy machine gun and used it to pour flanking fire into the hostile positions, killing 75. Inspired by this show of bravery, his 35 troopers rallied and carried the hill and killed 25 enemies. 1LT Burke was the 5th Cavalry's last Medal of Honor recipient in the Korean War. During their second winter in-country, the 5th Cavalry was relieved and rotated back to back to Hokkaido, Japan on 7 December 1951 after 549 days of constant combat. ==Vietnam War==