World War One overview

Its been one hundred years since the end of the 'War to End All Wars' and the outcome of this great conflict is still very relevant today, While the war ended the Ottoman, Austro-Hungarian, Russian and German Empires it was also responsible for the rise of Fascism, Marxist-Leninism and Islamism. Vladimir Putin is an extension of the KGB apparatus that originated with Lenin's Cheka (during WWI) and ISIS - gains its intellectual capital (if you can call it such a thing) from the Wahhabism that challenged Turkish superiority in the Arabian Peninsula. As well American Interventionism, which has critics on both the left and the right, can take as its champion Woodrow Wilson, who rejected the isolation of old to thrust America into the global theater as never before. One would not be mistaken to conclude that the genesis of the US as a superpower has its origin in WWI not necessarily in a military capacity (where it swung the war against the Central Pact in 1918) but in its ability to finance the allied war machine. The American economic power house grew to adulthood in the Great War.

Total number of deaths is estimated to be 11 million military personal and 7 million civilians.  Numbers do not include the Great Influenza epidemic that followed the war and infected 500 million people (killing between 50 and 100 million).

I will use rounded numbers for approximate Death estimates for each principal fighting powers. Death numbers do not include wounded. 

Australia - 62,000, Canada - 67,000, India - 74,000, New Zealand - 18,000, Newfoundland - 1,600, South Africa - 10,000,  UK and Colonies - 1,012,000, Belgium - 145,000, France - 1,738,000, Greece - 176,000, Romania - 666,000, Italy 1,243,000, Russia 3,395,000, United States 118,000, Austria-Hungary - 2,081,000, Bulgaria - 188,000, German Empire - 2,801,000, Ottoman Empire - 3,272,000

Biggest Source of Civilian Deaths = 1,500,000 Armenians

Source: World War One Casualties