MacArthur's later career drove a harsher public reassessment

Why did Douglas MacArthur's reputation decline after the Second World War?

His later conduct toward Truman and higher command, together with deeper scholarship on the Pacific war, made the heroic image harder to sustain.

Britain never embraced Douglas MacArthur in quite the same heroic frame as much of the American public. The sharpest reassessment came from MacArthur's later career and his conduct toward President Harry S. Truman and other superiors. Wider exposure to scholarship on the Far East and Pacific campaigns added evidence that complicated the wartime image. The exchange is therefore as much about civil-military relations and historical reputation as it is about judging battlefield performance.