Quick Facts
Born:
September 22, 1882, Helmscherode [now in Bad Gandersheim], Germany
Died:
October 16, 1946, Nürnberg (aged 64)

Wilhelm Keitel (born September 22, 1882, Helmscherode [now in Bad Gandersheim], Germany—died October 16, 1946, Nürnberg) was a field marshal and head of the German Armed Forces High Command during World War II. One of Adolf Hitler’s most loyal and trusted lieutenants, he became chief of the Führer’s personal military staff and helped direct most of the Third Reich’s World War II campaigns.

Keitel served mainly as a staff officer in World War I and held administrative posts under the Weimar Republic (1918–33). In 1935 he became chief of staff of the Wehrmachtamt (Armed Forces Office), under the minister of war, and in 1938 he advanced to head of the Oberkommando der Wehrmacht (OKW; Armed Forces High Command), which Hitler had created as a central control agency for Germany’s military effort. He held that post until the end of World War II. Keitel participated in all major conferences, dictated the terms of the French surrender in June 1940, and signed operational orders—including directives authorizing the shooting of commandos or political commissars taken prisoner in uniform and other directives making it possible to detain civilians without due process.

Keitel was present, though not injured, at the bombing of Hitler’s field headquarters in the July Plot. He directed the efforts to reassert control over the conspirators, and he was a member of the “court of honour” that expelled many of them from the German military—thus securing their conviction and their sentencing to death by a civilian court.

Germany invades Poland, September 1, 1939, using 45 German divisions and aerial attack. By September 20, only Warsaw held out, but final surrender came on September 29.
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After the war the International Military Tribunal convicted Keitel of planning and waging a war of aggression, of war crimes, and of crimes against humanity. Denied his request for a military execution by firing squad, he was hanged at Nürnberg. (See war crime: The Nürnberg and Tokyo trials.)

Keitel was generally regarded as a weak officer who had little tactical military experience. His reminiscences were edited by Walter Görlitz and published posthumously as Generalfeldmarschall Keitel, Verbrecher oder Offizier? (1961; The Memoirs of Field-Marshal Keitel, also published as In the Service of the Reich).

The Editors of Encyclopaedia BritannicaThis article was most recently revised and updated by Encyclopaedia Britannica.
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Quick Facts
Also called:
Second World War
Date:
September 3, 1939 - September 2, 1945
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World War II, conflict that involved virtually every part of the world during the years 1939–45. The principal belligerents were the Axis powersGermany, Italy, and Japan—and the Allies—France, Great Britain, the United States, the Soviet Union, and, to a lesser extent, China. The war was in many respects a continuation, after an uneasy 20-year hiatus, of the disputes left unsettled by World War I. The 40,000,000–50,000,000 deaths incurred in World War II make it the bloodiest conflict, as well as the largest war, in history.

Along with World War I, World War II was one of the great watersheds of 20th-century geopolitical history. It resulted in the extension of the Soviet Union’s power to nations of eastern Europe, enabled a communist movement to eventually achieve power in China, and marked the decisive shift of power in the world away from the states of western Europe and toward the United States and the Soviet Union.

(Read Sir John Keegan’s Britannica entry on the Normandy Invasion.)

Axis initiative and Allied reaction

The outbreak of war

By the early part of 1939 the German dictator Adolf Hitler had become determined to invade and occupy Poland. Poland, for its part, had guarantees of French and British military support should it be attacked by Germany. Hitler intended to invade Poland anyway, but first he had to neutralize the possibility that the Soviet Union would resist the invasion of its western neighbour. Secret negotiations led on August 23–24 to the signing of the German-Soviet Nonaggression Pact in Moscow. In a secret protocol of this pact, the Germans and the Soviets agreed that Poland should be divided between them, with the western third of the country going to Germany and the eastern two-thirds being taken over by the U.S.S.R.

Having achieved this cynical agreement, the other provisions of which stupefied Europe even without divulgence of the secret protocol, Hitler thought that Germany could attack Poland with no danger of Soviet or British intervention and gave orders for the invasion to start on August 26. News of the signing, on August 25, of a formal treaty of mutual assistance between Great Britain and Poland (to supersede a previous though temporary agreement) caused him to postpone the start of hostilities for a few days. He was still determined, however, to ignore the diplomatic efforts of the western powers to restrain him. Finally, at 12:40 pm on August 31, 1939, Hitler ordered hostilities against Poland to start at 4:45 the next morning. The invasion began as ordered. In response, Great Britain and France declared war on Germany on September 3, at 11:00 am and at 5:00 pm, respectively. World War II had begun.

Germany invades Poland, September 1, 1939, using 45 German divisions and aerial attack. By September 20, only Warsaw held out, but final surrender came on September 29.
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Pop Quiz: 17 Things to Know About World War II