World War I: The Definitive Encyclopedia and Document Collection [5 volumes]: The Definitive Encyclopedia and Document Collection

One hundred years after the beginning of World War I in 1914, this conflict still stands as perhaps the most important event of the 20th century. World War I toppled all of the existing empires at the time, transformed the Middle East, and vaulted the United States to becoming the world's leading economic power. Its effects were profound and lasting—and included outcomes that led to World War II. This multivolume encyclopedia provides a wide-ranging examination of World War I that covers al...