

Few had the understanding shown by a 26 year-old conservative Member of Parliament, Winston Churchill, in 1901. Many Europeans entered the war thinking that victory would come easily. A few months later the great powers of Europe were at war.

On Jin Sarajevo Gavrilo Princip, a young Serbian revolutionary, shot and killed Austrian Archduke Franz Ferdinand and his wife Sophie. The war in Europe, of course, began long before the United States entered.

economy turned out a vast supply of raw materials and munitions. Over four million Americans served in the armed forces, and the U.S. (See the chronology at the end for key dates). Although the United States was actively involved in World War I for only nineteen months, from April 1917 to November 1918, the mobilization of the economy was extraordinary.
