WWII Important Dates and Battles By darthquinn Jul 7, 1927 Japan invades China Jan 30, 1933 Hitler becomes Chancellor of Germany Mar 12, 1938 Germany annexes Austria Sep 1, 1939 Germany invades Poland Sep 3, 1939 France + Britain declare war on Germany Period: Apr 9, 1940 to Apr 10, 1940 Germany invades and controls Denmark and Norway Period: May 10, 1940 to Jun 22, 1940 Germany takes over much of western Europe using quick strikes (blitzkrieg)) May 30, 1940 Winston Churchill= leader of Great Britain Jun 10, 1940 Italy joins the Axis Powers