After Johnson announced the cancellation of the 65,000-ton , under construction and the Navy's hope to participate in strategic nuclear air operations, without consulting the Department of the Navy nor Congress, Secretary of the Navy John L. Sullivan abruptly resigned, beginning the Revolt of the Admirals. In June 1949, the House Committee on Armed Services launched an investigation into charges of malfeasance in office against Secretary Johnson. While ultimately cleared of any wrongdoing, the congressional rebuke weakened Johnson's power with the military and President Truman, and few subsequent cuts were made. After his severe cutbacks resulted in a military too weak to perform effectively in the initial days of the Korean War, Johnson resigned on 19 September 1950, replaced with George Marshall. Ironically, the Marines, as part of an amphibious corps with the US Army 7th division who deployed, and made an amphibious operation at Inchon at the opening of the war.