any particular incident that started the war?
On 1 September 1939, Germany invaded Poland after having staged several false flag border incidents as a pretext to initiate the invasion.
World War II
On 1 September 1939, Germany invaded Poland after having staged several false flag border incidents as a pretext to initiate the invasion. The first German attack of the war came against the Polish defenses at Westerplatte.
the u.s. manhattan project of 1945 was responsible for developing nuclear weapons. which war were these weapons used in? World War II when did this war take place? 1 September 1939 to 1945
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World War II [SEP] War breaks out in Europe (1939–40)
On 1 September 1939, Germany invaded Poland after having staged several false flag border incidents as a pretext to initiate the invasion. The first German attack of the war came against the Polish defenses at Westerplatte. The United Kingdom responded with an ultimatum to Germany to cease military operations, and on 3 September, after the ultimatum was ignored, France and Britain declared war on Germany, followed by Australia, New Zealand, South Africa and Canada. The alliance provided no direct military support to Poland, outside of a cautious French probe into the Saarland. The Western Allies also began a naval blockade of Germany, which aimed to damage the country's economy and the war effort.