Causes, military course, and consequences of WWI
The Russian Revolutions of 1917
Paris Conference, Versailles Treaty
After-effects of War and colonialism
The Great Depression: causes and worldwide consequences
International Communism
International Facism
Liberal Democracies in Danger
Origins and Responsibilities for WWII
WWII: Geography, Leaders, Military Factors & Turning Points
The Human Toll of 20th Century Wars & Genocide
Additional Reference for this topic:
World War One timeline

Causes, Military Course and Consequences of World War I


John Nash, Over the Top (1918)

One the most devastating events in twentieth century world history was World War I. It lasted from July 1914 until November 1918 and involved all the industrialized great powers of Europe. It pitted the Triple Entente powers or the Allies (Great Britain, France and Russia) against the Central Powers (Germany and Austria-Hungary). By 1915-16, this essentially European war became a world war when Turkey and Bulgaria joined the Central Powers and Italy, Japan and Romania joined the allies. (Click here to view war atlas)