Introductory ReadingIn A NutshellBetween April 1917 and November 1918, over two million Americans fought in the biggest and most costly war in European history to that date. Entering only at the tail end of four years of slaughter and horror, the United States helped turn the tide of the war in favor of the Allies, and brought America onto the international stage as a major military, financial, and industrial power. Though at times unpopular at home, America's involvement in World War I was successful from a military standpoint. World War I led to an increasingly large army and more power for the federal government. By the war's end, over 50,000 American soldiers lay dead on Flanders' Fields, with even more dead from the Influenza Pandemic. World War I marked the end of the old order in Europe. For the United States, it marked the beginning of the American Century.
World War I matters, today, for several reasons. World War I was one of the most deadly and horrible wars the world has ever seen. Between 1914 and 1918 more than 11 million soldiers died in the name of militarism, imperialism, and nationalism. In many ways, the modern world began in the trenches of the Western Front, and the United States rose from a quiet industrial power to world preeminence thanks to its role in the so-called "War to End all Wars."
When war broke out in July 1914, many people were relieved that the long-awaited showdown between Germany and her allies—the Ottoman and Austro-Hungarian Empires—against Britain, France, and Russia had finally come. The general sentiment was that the war would be over by Christmas. The reality was far different. After two months of old-fashioned mobile warfare involving cavalry and infantry battles, the fronts in both Eastern and Western Europe hardened into a stalemate with both sides hunkered down behind increasingly sophisticated trench systems, some of which can still be seen today lining the fields of Belgium and France. The carnage of trench warfare was incredible: on one single day, 1 July 1916, the British army suffered 58,000 casualties in the Battle of the Somme, all in a futile effort to capture just a few hundred yards of territory. An entire generation of European men died in the trenches. Farmers in northeastern France today still routinely dig up bombs, bones and other debris from the war.
World War I, though it has been called the "War to End All Wars," led directly to World War II and helped forge the international order we know today. Following the end of the war, the Ottoman Empire was divided into 'Protectorates' under the control of Britain and France. One of those was called Palestine; another was called Iraq. Many of the recent historical causes of war and strife in the Middle East can be traced back to two members of the British and French Foreign Offices (Sykes and Picot) who drew some lines on a map and came up with the modern Middle East.