American troops advancing on the Western Front, March 1918. The United States became directly involved in World War I after declaring war on Germany on April 6, 1917.

The American Expeditionary Forces (AEF) [a] was a formation of the United States Armed Forces on the Western Front during World War I, composed mostly of units from the U.S. Army. The AEF was established on July 5, 1917, in Chaumont, France under the command of then-Major General John J. Pershing.

The United States campaigns in World War I began after American entry in the war in early April 1917. The American Expeditionary Force (AEF) served on the Western Front, under General John J. Pershing, and engaged in 13 official military campaigns between 1917 and 1918, for which campaign streamers were designated.

World War I was the first time in American history that the United States sent soldiers abroad to defend foreign soil. On April 6, 1917, when the United States declared war against Germany, the nation had a standing army of 127,500 officers and soldiers.

Mar 29, 2017 · On April 6, the U.S. Army was a constabulary force of 127,151 soldiers. The National Guard had 181,620 members. Both the country and the Army were absolutely unprepared for what was going...

The more than four million Americans who served during the war, half of whom deployed overseas, helped create the modern U.S. Army. This pamphlet is intended to honor their service and to...

About 500 Americans participated in the campaign, including troops of the 16th Engineers, 28th Aero Squadron, and 1st Gas Regiment. Aisne 27 May - 5 June 1918. The next major German attack fell...

conflict capped a period of reform and professionalism that transformed the Army from a small dispersed organization rooted in constabulary operations to a modern industrialized fighting force capable of global reach and influence.

The United States Army and the First World War In 1914 the United States Army comprised 98,000 men, of whom some 45,000 were stationed overseas. The regular army was backed up by the 27,000 troops in the National Guard.

Nov 6, 2024 · This blog lists unit records for the United States Army from the start of the US participation in World War I through the 1930s. The bulk of the series listed focus on World War I, as wartime records were more likely then peacetime records to be retained permanently.