Fought between 28 July 1914 to 11 November 1918, World War I was a global conflict primarily putting the Central Powers of Germany, Austria-Hungary, the Ottoman Empire and Bulgaria against the Allies which was a coalition of many nations, most prominently the Great Britain, France, Russia, Japan and Italy. It saw the mobilization of close to 70 million men from 30 different countries. 60 million of these were from Europe while 65 million of the total saw battle. The Great War was among the deadliest conflicts in history and there were 10 million military deaths; 6 million on the side of the Allies and 4 million from the Central Powers. Apart from the military deaths, there were close to 23 million wounded in war. There were also about 8 million civilian deaths, including about 6 million due to war-related famine and disease. Among the belligerents the Ottoman Empire and Russia lost maximum number of people numbering close to 3 million. While Serbia lost anywhere between 16 to 27 percent of its population, the highest in terms of total population.