France and Britain both had formed alliences with Poland. Well when Poland was attacked By Nazi Germany both countryies went to sopport Poland to defeat Nazi Germany. The allience is called NATO.
•Germany under the fascist regime of Adolf Hitler •Germany being increasingly hostile and thinking anyone who isn’t if the Aryan race was subhuman •Germany declaring war and attacking Poland for land in Sept. 1st, 1939. •France and The UK already had hostilities to Germany before the war are rivalries and the political tensions just sped things up.
