Timeline of World War II (1939)


This is a timeline of events of World War II in 1939 from the start of the war on 1 September 1939. For events preceding September 1, 1939, see the timeline of events preceding World War II.
Germany's invasion of Poland on 1 September 1939 brought many countries into the war. This event, and the declaration of war by France and Britain two days later, mark the beginning of World War II. After the declaration of war, Western Europe saw minimal land and air warfare, leading to this time period being termed the "Phoney War". At sea, this time period saw the opening stages of the Battle of the Atlantic.
In eastern Europe, however, the agreement between the Soviet Union and Nazi Germany signed on 23 August opened the way in September for the Soviet Union's invasion of eastern Poland, which was divided between the two countries before the end of the month. The Soviet Union began a new military offensive by invading Finland at the end of November. France and Britain provided minimal physical support to Poland during the invasion.
The war in East Asia among the Republic of China and the Empire of Japan reached a stalemate, while [Soviet–Japanese border conflicts|increasing clashes between Japan during World War II|Japan and the Soviet Union] ended when the two parties agreed in September on a ceasefire.

September

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October

  • 1 October
  • * The Chinese National Revolutionary Army at Changsha begins a counteroffensive that targets the Japanese army's overextended lines of communication.
  • * Latvian representatives negotiate with Stalin and Molotov. Soviets threaten an occupation by force if they do not get military bases in Latvia.
  • 2 October
  • * The last Polish garrison stationed in Hel capitulates, ending the Battle of Hel.
  • * The Declaration of Panama is approved by the American republics. Belligerent activities should not take place within waters adjacent to the American continent. A neutrality zone of some in breadth is to be patrolled by the U.S. Navy.
  • * In the name of a yet to be put in place Czechoslovak provisional government Štefan Osuský, signs a deal with the French government for the creation of a Czechoslovak army.
  • 3 October
  • * British forces move to take over part of the frontier defenses manned by French troops.
  • * Lithuanians meet Stalin and Molotov in Moscow. Stalin offers Lithuania the city of Vilnius in return for allowing Soviet military bases in Lithuania. The Lithuanians are reluctant.
  • 4 October: The French forces retreat from the Saarland in Germany, and return behind the Maginot Line.
  • 5 October
  • * Latvia signs a 10-year Mutual Assistance Pact with the Soviet Union, which allows the Soviets to have 25,000 men in military bases in Latvia. Stalin promises to respect Latvian independence.
  • * Reacting to the news that German surface raiders are targeting commercial shipping, the British First Sea Lord Sir Dudley Pound orders the creation of eight hunting forces together with the French to scout the Atlantic and destroy the surface raiders.
  • 6 October: Polish resistance in the Polish September Campaign comes to an end. Hitler speaks before the Reichstag, declaring a desire for a conference with Britain and France to restore peace.
  • 8 October: in a major victory the Chinese army inflicts heavy losses to the Japanese at Changsha forcing them to retreat to Yueyang.
  • 9 October
  • * Germany issues orders to prepare for the invasion of Belgium, France, Luxembourg, and the Netherlands.
  • * The German cruiser Deutschland seizes the American freighter SS City of Flint and its crew, accusing them of contraband. Led by a prize crew the ship is ordered to go to Germany, causing a diplomatic incident with the United States and igniting American public opinion.
  • 10 October
  • * The last of Poland's military surrenders to the Germans.
  • * The leaders of the German navy suggest to Hitler they need to occupy Norway.
  • * British Prime Minister Chamberlain formally declines Hitler's peace offer in a speech held in the House of Commons.
  • * Lithuania signs a 15-year Mutual Assistance Pact with the Soviet Union, which allows the Soviets to have 20,000 men in military bases in Lithuania. In a secret protocol, Vilnius is made Lithuanian territory.
  • 11 October
  • * An estimated 158,000 British troops are now in France.
  • * King Carol II of Romania unsuccessfully asks Germany to permit former Polish president Ignacy Mościcki to leave Romania for Switzerland.
  • 12 October
  • * French Premier Édouard Daladier declines Hitler's offer of peace.
  • * Finland's representatives meet Stalin and Molotov in Moscow. Soviet Union demands Finland give up a military base near Helsinki and exchange some Soviet and Finnish territories to protect Leningrad against Great Britain or the eventual future threat of Germany.
  • 13 October: In the midst of the night the under the command of Günther Prien infiltrates Scapa Flow and sinks the British battleship, killing 833 crewmen.
  • 14 October
  • * Finns meet Stalin again. Stalin tells them that "an accident" might happen between Finnish and Soviet troops, if the negotiations last too long.
  • * The submarine ORP Orzeł completes its voyage reaching the east coast of Scotland.
  • 16 October: The Luftwaffe made its first air raid on Britain when it sent a dozen Junkers Ju 88 after ships off Rosyth, in particular the battlecruiser HMS Hood. The raid was unsuccessful, failing to land any hits while the group commander Helmuth Pohle was shot down.
  • 17 October
  • * The Luftwaffe launches a new raid on Britain, this time targeting the British fleet anchored at Scapa Flow, again with limited success, with only the decommissioned HMS Iron Duke being hit.
  • * A Czechoslovak National Committee is put in place in Paris by Edvard Beneš with the goal of creating an internationally recognized government.
  • 18 October:
  • * First Soviet forces enter Estonia. During the Umsiedlung, 12,600 Baltic Germans leave Estonia.
  • * Adolf Eichmann starts deporting Jews from Austria and Czechoslovakia into Poland, executing the Nisko Plan.
  • 19 October: Portions of Poland are formally inducted into Germany; the first Jewish ghetto is established at Lublin.
  • 20 October
  • * The "Phoney War": French troops settle in the Maginot line's dormitories and tunnels; the British build new fortifications along the "gap" between the Maginot line and the Channel.
  • * Pope Pius XII's first encyclical condemns racism and dictatorships.
  • * Germany's minister to Romania Wilhelm Fabricius unsuccessfully attempts to coax Romania in renouncing to the guarantee given in March by Britain to support them if invaded.
  • 21 October
  • * Registration begins in the United Kingdom in order to conscript all able-bodied males between 18 and 23.
  • * The German prize crew anchors the SS City of Flint in Tromsø, Norway, but are immediately ordered to limit their stay to less than twenty-four hours.
  • 23 October: The seized freighter City of Flint reaches Murmansk in the Soviet Union. Here the prize crew is forced to leave the ship, but the latter is not given permission to leave.
  • 26 October
  • * Germany annexes the former Polish regions of Upper Silesia, West Prussia, Pomerania, Poznan, Ciechanow, part of Łódź, and the Free City of Danzig and creates two new administrative districts, Danzig-West Prussia and Posen ; the areas of occupied Poland not annexed directly by Germany or by the Soviet Union are placed under a German civilian administration called the Generalgouvernement.
  • * The Prime Minister of the Slovak State Jozef Tiso is elected President by the Parliament.
  • 27 October
  • * Belgium announces its neutrality in the present conflict.
  • * Jozef Tiso appoints Vojtech Tuka Prime Minister of Slovakia.
  • * The City of Flint is permitted to leave under the control of its prize crew despite the angry protests of the Roosevelt administration.
  • 28 October
  • * Hitler, worried on one side by the protests received by the American and Norwegian governments, and on the other by the danger of losing a warship with such a prestigious name, orders the Deutschland to return home.
  • * The anniversary of the birth of the First Czechoslovak Republic is signed throughout the Protectorate of Bohemia and Moravia by a large number of anti-Nazi protests. The German intervention causes the death of a demonstrator and the wounding of the student Jan Opletal.
  • 30 October: The British government releases a report on concentration camps being built in Europe for Jews and anti-Nazis.
  • 31 October: As Germany plans for an attack on France, German Lieutenant-General Erich von Manstein proposes that Germany should attack through the Ardennes rather than through Belgium – the expected attack route.

November

December