What big news events happened in 1940s?

In April, German troops seized Denmark and Norway; In May, GB: Neville Chemberlain resigned and Winston Churcill became prime minister; evacuation of the French and British troops from Dunkirk started; June: Italy declared war on France; German troops entered Paris; Marshal Pétain asked for an armistice, France was occupied by the Germans; Soviet troops invaded Romania; July: General de Gaulle formed the Free French government in Britain; August: September: the Axis was created which joined Germany, Italy and Japan together for 10 years; October: German U-boats sank the British ship , the Empress of Britain; December: the Italian troops were stopped by the British general Wavell in North Africa.