Operation Rat Killer

Operation Rat Killer
Part of the Korean War
Date December 1951 – February 1952 Location Jirisan, Korea Result ROK Victory, suppression of the guerrillas
Belligerents
South Korea  United States	North Korea
Commanders and leaders
Paik Sun Yup	Lee Hyun-sang
Strength
11,000 60	10,000[1]
Casualties and losses
	5,800 killed, 5,700 captured

Operation Rat Killer was a Korean War operation carried out by Republic of Korea forces and United States advisers from December 1951 into February 1952. It was aimed at eradicating communist guerrilla forces operating in zones occupied by the United Nations forces. The operation involved two Korean Army divisions, the Capital Division and the 8th Division, several regiments of the Korean National Police, a ROKAF squadron of Mustang fighter-bombers, and about sixty United States experts. The operation was under the command of General Paik Sun Yup. The operation's particular priority was the mountainous area of Jirisan.

Before the operation, the guerrillas were allegedly responsible for harassing nearly a third of UN forces and conducting regular attacks on roads and railways used by them. After the operation, the guerrilla forces were greatly weakened, although a resurgence remained a threat until the end of the war.^[2]