Operation Killer

Operation Killer
Part of the Korean War

Operation Killer map
Date20 February – 6 March 1951
Location
Korea
Result UN victory
Belligerents

 United Nations:

 China
 North Korea
Commanders and leaders
Douglas MacArthur
Matthew Ridgway
Bryant Moore 
Oliver P. Smith
Edward Almond
Yu Jae-hung
Peng Dehuai
Casualties and losses
 South Korea
59 killed
802 missing
119 wounded
Total 980 Casualties:310
 China
7,819 killed
1,469 wounded
208 captured
Total 9,496 casualties:310

Operation Killer was a military operation that marked the start of the second major counter offensive which United Nations Command (UN) forces launched against the Chinese Communist People's Volunteer Army (PVA) and the North Korean Army (KPA) during the Korean War. The offensive lasted from 20 February to 6 March 1951 and was formulated by General Matthew Ridgway with the goal of annihilating enemy forces south of a line designated the Arizona Line. The operation was immediately followed by Operation Ripper.