| A | B |
|---|
| 1870-1914 | Military spending increased |
| 1914 | President Woodrow Wilson declared policy of neutrality |
| June 28,1914 | Archduke Francis Ferdinand's wife was killed |
| April 2,1917 | U.S declared war on Germany |
| August 1,1914 | Germany declared war on Russia |
| August 4, 1914 | Britain declared war on Germany |
| September 1914 | Battle of the Marne |
| November 6,1917 | Bolshevicks overthrew provisional gov't |
| 1924 | Lenin died |
| 1932-1933 | severe famine caused death |
| March 1917 | revolution overthrew Czar Nicholas II |
| March 1918 | New Russian gov't signed harsh Treaty of Brest-Litovsk |
| 1919 | cominter organized |
| 1935-1939 | Great Purge |
| October 1922 | Mussolini marched on Rome |
| 1935 | Italy invaded Ethiopia |
| November 1918 | Germany established Warmar Republic |
| 1933 | Japan withdrew from the League of Nations |
| 1936 | Spanish Civil War |
| September1,1939 | Germany invaded Poland |
| September3,1939 | World War II began |
| June 1941 | Germany invaded Soviet Union |
| March 1941 | Lend - Lease Act |
| December7,1941 | Japanese attacked pearl harbor |
| 1942 | Japan attacked Philippines |
