On April 6, 1917, Congress declared war and the United States joined the great conflict that had engulfed Europe since the assassination of Austrian Archduke Ferdinand in 1914. The American Expedition
As the United States fought the Civil War in the early 1860s, the country's western frontier was simultaneously the site of significant military campaigns that took the lives of both American and Siou
"In its revised and updated fourth edition, this exhaustive encyclopedia provides a record of casualties of war from the last five centuries through 2015, with new statistical and analytical informati