Who replaced General MacArthur in 1951 as UNcommander in the Korean war?

General Matthew Ridgway replaced General Douglas MacArthur as UN commander in the Korean War in April 1951. Ridgway, who had previously commanded the 8th Army, was appointed to lead the UN forces following MacArthur's dismissal by President Harry S. Truman due to differences in strategy and policy regarding the conflict. Ridgway's leadership was instrumental in stabilizing the front and revitalizing the UN campaign in Korea.