Poland time line in World War 2
March 31, 1939
France and Great Britain guarantee that the borders of the Polish state is safe.
September 1, 1939
Germany invades Poland, starting WW2 in Europe.
September 3, 1939
Honoring their guarantee of Poland’s borders, Great Britain and France declare war on Germany.
September 17, 1939
The Soviet Union (Russia) invades Poland from the east.
September 27–29, 1939
Warsaw surrenders. The Polish government flees into Romania. Germany and the Soviet Union (Russia) divide Poland between them.
France and Great Britain guarantee that the borders of the Polish state is safe.
September 1, 1939
Germany invades Poland, starting WW2 in Europe.
September 3, 1939
Honoring their guarantee of Poland’s borders, Great Britain and France declare war on Germany.
September 17, 1939
The Soviet Union (Russia) invades Poland from the east.
September 27–29, 1939
Warsaw surrenders. The Polish government flees into Romania. Germany and the Soviet Union (Russia) divide Poland between them.