Why did president truman fire general macarthur towards the end of the korean war?

General Douglas MacArthur, the commander of the U.N. forces in Korea, issued an unauthorized statement containing a veiled threat to expand the war into China if the Communist side refused to come to terms. ... On April 11, 1951, President Truman relieved MacArthur of his command.

This was because he issued an unauthorized statement containing a veiled threat to expand the war into China if the Communist side refused to come to terms

If you need more info just let me know I just did three assignments on this s:-)

answer; (a) he was a u.s senator for 38 years;