WW1 & WW2 and The Inter-war years By S07611 Jun 28, 1914 Franz Ferdinand Assassinated Period: Jun 28, 1914 to Nov 11, 1918 World War 1 Jul 31, 1914 Russia Mobilizes it's Army Aug 1, 1914 Germany Declares War on Russia Aug 2, 1914 The Eastern Front was Formed Aug 3, 1914 Germany Declares War on France Aug 4, 1914 Britain Declares War on France Aug 4, 1914 The Western Front was Formed Period: Apr 25, 1915 to Jan 9, 1916 Gallipoli Campaign Period: Jul 1, 1916 to Nov 18, 1916 The Battle of the Somme Period: Apr 1, 1917 to Nov 30, 1917 Russia Withdraws from the War Apr 6, 1917 United States Enters the War Mar 3, 1918 Eastern Front Collapses Period: Mar 21, 1918 to Jul 18, 1918 Western Front Push Nov 11, 1918 The War Ends Jun 28, 1919 Treaty of Versilles Mar 19, 1920 U.S. Fails to Ratify the Treaty of Versailles Aug 26, 1920 Women Gained the Legal Right to Vote Jun 30, 1921 Russian Civil War Jan 30, 1933 Adolf Hitler named Chancellor of Germany Sep 1, 1939 Germany invaded Poland, and Britain and France declared war on Germany Period: Sep 1, 1939 to Sep 1, 1945 World War 2 Period: Sep 1, 1939 to Aug 16, 1945 The Battle of the Atlantic Sep 10, 1939 Canada declared war on Germany Period: Jul 10, 1940 to Oct 31, 1940 The Battle of Britain Jul 22, 1941 Germany invades the Soviet Union Dec 7, 1941 Japanese attack Pearl Harbour Jan 1, 1942 Plan for Holocaust started Jun 4, 1942 The Battle of Midway Island Aug 19, 1942 Dieppe Raid Jun 6, 1944 D-Day (Normandy Invasion) Apr 30, 1945 Hitler Commited Suicide Aug 6, 1945 First Atomic Bomb dropped on Hiroshima Aug 9, 1945 Second Atomic Bomb dropped on Nagasaki Aug 16, 1945 The End of WW2