On October 7, 1950, around the time the sun was rising in the sky, the Second Sergeant Jeon Gu-seo from the front returned to the squad after completing the first reconnaissance flight to Hwacheon-gun, Ganghwa-do, where the North Korean Army was hiding. He hurried to prepare for takeoff again. Sweat poured down like rain, but there was no time to wipe it off. It had been a week since the South Korean and UN forces worked hand in hand to counterattack the North Korean Army moving southward. In order to find an opportunity to attack the North Korean Army, the Air Force's reconnaissance wing had to provide support throughout Hwacheon-gun.

There was tension on the runway overgrown with weeds. Sgt Jeon boarded the L-4 liaison plane together with Army Major Jeon Ang-myeong, an observation officer at the 6th Division Artillery Command at the time. The L-4 is a two-seater light aircraft with a front and rear cockpit. The sergeant has traveled the battlefield several times over the past month with this contactor, who is not equipped with any combat equipment.

As the liaison plane approached Hwacheon-gun, Ganghwa-do, the North Korean Army fired anti-aircraft guns as if they were waiting. The sergeant Jeon turned to an unexpected fire and discovered another North Korean position. Two regiments were encamped on the hillside and roadside in Guman-ri, Gandong-myeon, Hwacheon-gun. The former sergeant and major former sergeant-major began an observation flight over the North Korean Army. Under the guidance of Major Jeon, the South Korean Army also opened fire on the North Korean forces.

In an instant, the engine of the plane was hit by a shell fired by the North Korean Army. Black smoke rose. The sergeant Jeon was calm. He did not let go of the control rod until the very end. The airplane, which had lost all its functions, was spinning round and round. Eventually, it fell with a roaring noise on the slope of a mountain 10km south of the Hwacheon Reservoir. He was 23 years old. In commemoration of his achievements, the government conferred a one-class special promotion and the Order of Military Service Medal of Honor.

Born in Seungho-eup, Gangdong-gun, South Pyongan Province, he graduated from Pyongyang Second Middle School. From August 1945, when he was 18, he served as a pilot for the Korean Aviation Association. In September 1948, he enlisted as the 2nd Air Corps of the Army Air Base Command, and two months later, he was commissioned as a second sergeant.

When the Korean War broke out, a Second Lieutenant Cheon took part in the war as a reconnaissance member of the Air Force. The North Korean Army's offensive to take over South Korea within a month was strong. The Second Lieutenant Cheon remained as a pilot of the L-4 Reconnaissance Squadron at Yeongcheon Base, Gyeongsangbuk-do, as a dispatched unit of the 2nd Corps of the ROK Army. He pierced through the intensive bombardment of the North Korean Army, and accurately found out the North Korean Army's movement status and direction of attack. This is because it was difficult to grasp the movements of the disguised North Korean forces through weather reconnaissance, so he approached to the North Korean forces as close as possible with low-flying flights. In particular, he played a decisive role in discovering and defeating two regiments of the North Korean Army in Pohang and the Kigae area. In addition, he was selected as a leading figure of victory in the Battle of Yeongcheon by telling the South Korean Army of the North Korean artillery units secretly preparing to attack the south of Mt. Bohyeon in Yeongcheon.