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 United States declared war on Germany on April 6, 1917, nearly three years after World War I started. A ceasefire and armistice were declared on November...

The United States entered into World War I in April 1917, more than two and a half years after the war began in Europe. Apart from an Anglophile element...

Britain, France, the Kingdom of Italy, Australia, and the United States. First World War naval action in the Adriatic consisted mainly of Austro-Hungarian bombardments...

This is a list of formations in the United States Army during World War I. Many of these formations still exist today, though many by different designations...

years of World War I, entering on the side of the Allied powers from 27 August 1916 until Central Power occupation led to the Treaty of Bucharest in May 1918...

The United States home front during World War II supported the war effort in many ways, including a wide range of volunteer efforts and submitting to government-managed...

of war in the United States during World War I and World War II. In all, 425,000 German prisoners lived in 700 camps throughout the United States during...

The World War I Victory Medal (known prior to establishment of the World War II Victory Medal in 1945 simply as the Victory Medal) was a United States service...

Eastern Theatre of World War I. The fighting also involved local Persian units, who fought against the Entente and Ottoman forces in Iran. The conflict...

posters and pamphlets to encourage war support. The United States was involved in World War I for the last 19 months of the war (April 1917 to November 1918)...

Mexican–American War, the American Civil War, the Spanish-American War, World War I, World War II and the Gulf War. It also includes US involvement in widespread...

During World War I (1914–1918), belligerents from both the Allied Powers and Central Powers violated international criminal law, committing numerous war crimes...

During World War I, conflict on the Asian continent and the islands of the Pacific included naval battles, the Allied conquest of German colonial possessions...

World War I or the First World War (28 July 1914 – 11 November 1918), also known as the Great War, was a global conflict between two coalitions: the Allies...

Fronte italiano; German: Südwestfront) was one of the main theatres of war of World War I. It involved a series of military engagements along the border between...

authorized the United States federal government to raise a national army for service in World War I through conscription. It was envisioned in December 1916...

main campaigns: the Sinai and Palestine, Mesopotamian, Caucasus, Persian, and Gallipoli campaigns. Both sides used local asymmetrical forces in the region...

The Italian campaign of World War II, also called the Liberation of Italy following the German occupation in September 1943, consisted of Allied and Axis...

military formation of the United States Army that saw service in World War I and World War II, in the 1991 Gulf War, and in the coalition occupation of...

2023 Hamas-led attack on Israel and outbreak of the Israel–Hamas war, the United States began to send warships and military aircraft into the Eastern Mediterranean...

in World War I France in World War I Germany in World War I Italy in World War I Romania in World War I United Kingdom in World War I United States in...

United States involvement in the Vietnam War began shortly after the end of World War II in Asia, first in an extremely limited capacity and escalating...

The I Corps is a corps of the United States Army headquartered in Joint Base Lewis-McChord, Washington. It is a major formation of United States Army Pacific...

years, but the first large-scale use of chemical weapons was during World War I. They were primarily used to demoralize, injure, and kill entrenched...

United States service medals of the world wars are U.S. military medals which were created solely for recognizing service in the First World War and World...

and the Mexican federal troops until 1918. The United States joined World War I as an "Associated Power" in 1917 on the side of Britain, France, Russia,...

rallies, demonstrations, campaigns, and vigils, relating to the Israel–Hamas war have occurred nationwide across the United States since the conflict's start...

of a national government in order to create a state of war between two or more sovereign states. In the context of World War I, the official international...

the United States during World War II covers the nation's role as one of the major Allies in their victory over the Axis Powers. The United States is generally...