Walter Campbell Short (March 30, 1880 – September 3, 1949) was a lieutenant general (temporary rank) and major general of the United States Army and the U.S. military commander responsible for the defense of U.S. military installations in Hawaii at the time of the Japanese attack on Pearl Harbor on December 7, 1941.
 Short was born in 1880 in Fillmore, Illinois. The son of a doctor, he graduated from the University of Illinois in 1901. He then taught mathematics for a year at a military academy. 
 He was commissioned as a second lieutenant of infantry in the U.S. Army on March 13, 1902, and assigned duty at the Presidio of San Francisco.  He served in the Philippines and later Alaska, and took part in the expedition into Mexico with the 16th Infantry Regiment in 1916. 
 During World War I, he served on the general staff of the 1st Division and as assistant chief of staff for the 3rd Army. He was awarded the Army Distinguished Service Medal for his efforts during the war. The citation for the medal reads:
 The President of the United States of America, authorized by Act of Congress, July 9, 1918, takes pleasure in presenting the Army Distinguished Service Medal to Colonel (Infantry) Walter Campbell Short, United States Army, for exceptionally meritorious and distinguished services to the Government of the United States, in a duty of great responsibility during World War I. Attached to the Fifth Section, General Staff, General Headquarters, American Expeditionary Forces, Colonel Short rendered conspicuous service in inspecting and reporting upon front-line conditions pertaining to the work of his section. During the St. Mihiel and Meuse-Argonne operations of the 1st Army Corps, he efficiently directed the instruction and training of machine-gun units at every available opportunity during rest periods. Later, as Assistant Chief of Staff, G-5, 3d Army, he manifested the same assiduous devotion to duty in organizing schools, conducting necessary inspections, and carrying out the intensive training process. After the war, Short became a member of the War Department General staff and served with the Far Eastern section of the Military Intelligence Division until 1924.  He then attended the Army War College and after graduation served as a staff school instructor. He commanded 1st Infantry Division from 1938 to 1940 and I Corps from January 1940 to January 1941. 
 General George C. Marshall, the U.S. Army Chief of Staff, appointed Short to the Hawaiian command on February 8, 1941 and promoted him to the temporary rank of Lieutenant General.  
 He earned the Distinguished Service Medal and was considered to have had a successful career at that time, especially in light of his promotions during peacetime.
 On December 17, 1941, General Short was removed from command of the U.S. Army's Hawaiian Department as a result of the Japanese attack on the Hawaiian Islands.  Short was ordered back to Washington, D.C., by General Marshall. He reverted to his permanent rank of major general, from his temporary rank of lieutenant general, since his temporary rank was contingent on his command. 
 On February 28, 1942, he retired from the Army and then headed the traffic department at a Ford Motor Company plant in Dallas, Texas. He briefly returned to active duty from October 3, 1945 to February 28, 1946.  He retired in 1946 and died in 1949 in Dallas of a chronic heart ailment.
 The Roberts Commission, headed by U.S. Supreme Court Associate Justice Owen J. Roberts, was formed soon after the attack on the Hawaiian Islands. General Short, along with Navy Commander in Chief, U.S. Fleet and Pacific Fleet, Admiral Husband E. Kimmel, were accused of being unprepared and charged with dereliction of duty. The report charged that Short and Kimmel did not take seriously enough an earlier war warning and did not prepare for an air attack at Pearl Harbor.
 In a letter dated January 24, 1941, Secretary of the Navy Frank Knox advised the Secretary of War Henry L. Stimson that the increased gravity of the Japanese situation had prompted a restudy of the problem of the security of the Pacific Fleet while in Pearl Harbor. Knox wrote:  "If war eventuates with Japan, it is believed easily possible that hostilities would be initiated by a surprise attack upon the fleet or the naval base at Pearl Harbor."  The letter proceeded:  "The dangers envisaged in their order of importance and probability are considered to be: (1) Air bombing attack (2) Air torpedo plane attack, (3) Sabotage, (4) Submarine attack, (5) Mining, (6) Bombardment by gunfire."
 Knox's letter stated the defenses against all but the first two were then satisfactory, described the probable character of an air attack and urged the Army to prepare for such an attack. It concluded with recommendations for the revision of joint defense plans with special emphasis on the coordination of Army and Navy operations against surprise aircraft raids. It also urged the conduct of joint exercises to train the forces to meet such raids.
 Stimson replied February 7, 1941, that a copy of the letter was being forwarded to Short, with direction to him to cooperate with the local naval authorities in making the suggested measures effective. Admiral Kimmel and General Short received copies of these letters at about the time they assumed their commands.
 The report found that had orders been complied with:
 None of these conditions was in fact inaugurated or maintained for the reason that the responsible commanders failed to consult and cooperate as to necessary action based upon the warnings and to adopt measures enjoined by the orders given to them by the chiefs of the Army and Navy commands in Washington.
 The Roberts Commission was not a court-martial proceeding nor a judicial tribunal. Rather, the investigations were for fact-finding. There is generally no right to "due process", in the sense of a right to counsel and to cross-examine witnesses at a fact-finding investigation.
 Admiral William Harrison Standley, who served as a member of the Roberts Commission, later disavowed the report, maintaining that "these two officers were martyred" and "if they had been brought to trial, both would have been cleared of the charge."
 In 1946 Short testified on his own behalf before Congress about the 1941 attack. Unlike some of his predecessors in Hawaii, Short was more concerned with sabotage from Japanese-Americans on Oahu. This led to Army planes parked outside of their hangars so they could be more easily guarded. However, this made them easy bombing targets and many were subsequently destroyed on the morning of the attack. In explaining his reasons for his instituting an alert against sabotage only (local "Alert One" level), General Short stated:
 He also declared that he did not receive adequate warning and suffered from a lack of resources. He and his family attempted to get the Army to restore his rank of lieutenant general in the retired ranks on the basis that warnings from the War Department prior to the attack were vague and in conflict.  He requested, but did not receive, a formal court-martial.
 On May 25, 1999, the United States Senate passed a non-binding resolution exonerating Kimmel and Short by a 52 to 47 vote. The resolution stated they had performed their duties "competently and professionally" and that the Japanese attacks were "not a result of dereliction of duty." "They were denied vital intelligence that was available in Washington," said Senator William V. Roth, Jr. (R-DE), contending they had been made scapegoats by the Pentagon. Senator Strom Thurmond (R-SC) called Kimmel and Short "the two final victims of Pearl Harbor." The resolution was originally attached as an amendment to the Department of Defense spending bill for FY2000 (S.1059) and cleared the Congress as a whole in October 1999, urging President Bill Clinton to restore Kimmel and Short to their full wartime ranks. However, neither Clinton nor any of his successors acted on the resolution.
 Short was portrayed by Jason Robards in Tora! Tora! Tora!.