Milestones: Friday, September 1, 2023
WORLD WAR II TRIGGERED — GERMANY’S SEPT. 1, 1939 INVASION OF POLAND triggered World War II, as other European nations Great Britain and France then declared war on Nazi Germany. The German government, having secured a surprise non-aggression pact the previous week with the Soviet Union — an agreement which secretly provided for these two nations to partition Poland, Germany executed the campaign without a declaration of war at 4:45 p.m. on Sept. 1. Nazi Germany possessed overwhelming military superiority over Poland, as demonstrated in the invasion, by combining its armor and air warfare.
After France and England declared war on Germany, nations on other continents, including Australia, New Zealand, South Africa and Canada, followed with their own war declarations.
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