History Logo
ShowsThis Day In HistoryScheduleTopicsStories
  • History Classics
  • Live TV
  • Your Profile
Your Profile
History
  • Find History on Facebook (Opens in a new window)
  • Find History on Twitter (Opens in a new window)
  • Find History on YouTube (Opens in a new window)
  • Find History on Instagram (Opens in a new window)
  • Find History on TikTok (Opens in a new window)
Email Updates
  • Live TV
  • History Classics
  • Shows
  • This Day In History
  • Schedule
  • Topics
  • Stories
  • Videos
  • History Podcasts
  • History Vault
  1. Home
  2. Topics
  3. World War I

World War I

World War I pitted Germany, Austria-Hungary and the Ottoman Empire against Great Britain, the United States, France, Russia, Italy and Japan. New military technology resulted in unprecedented carnage. By the time the war was over and the Allied Powers claimed victory, more than 16 million people—soldiers and civilians alike—were dead.

Topics

See All

HISTORY: World War I Battles, WWI Timeline

Featured

World War I Battles: Timeline

For four years, from 1914 to 1918, World War I raged across Europe’s western and eastern fronts after growing tensions and then the assassination of Archduke Franz Ferdinand of Austria ignited the war. Trench warfare and the early use of tanks, submarines and airplanes meant the war’s battles were devastatingly bloody, claiming an estimated 40 […]

Read moreRead more about World War I Battles: Timeline
World War IArchduke Franz Ferdinand and his wife assassinated in Sarajevo, Yugoslavia on June 28, 1914. (Photo by Keystone-France/Gamma-Rapho via Getty Images)

Outbreak of World War I

Europe by 1914 Almost exactly a century before, a meeting of the European states at the Congress of Vienna had established an international order and balance of power that lasted for almost a century. By 1914, however, a multitude of forces was threatening to tear it apart. The Balkan Peninsula, in southeastern Europe, was a […]

Read more
An illustration of the sinking of the British ocean liner RMS Lusitania, torpedoed by German U-boat U-20 off the old head of Kinsale, Ireland.

Lusitania

Prelude to Lusitania: Germany Announces Unrestricted Submarine Warfare When World War I erupted in 1914, President Woodrow Wilson (1856-1924) pledged neutrality for the United States, a position that the vast majority of Americans favored. Britain, however, was one of America’s closest trading partners, and tension soon arose between the United States and Germany over the […]

Read more
HISTORY: The Battle of the Somme

Battle of the Somme

Battle Begins – July 1, 1916 Prior to the attack, the Allies launched a week-long heavy artillery bombardment, using some 1.75 million shells, which aimed to cut the barbed wire guarding German’s trench defenses and destroy the enemy’s positions. On the morning of July 1, 11 divisions of the British 4th Army—many of them volunteer […]

Read more
How a Wrong Turn Started World War I

Videos

See All

2:47 minTV-PG
Play

Featured

World War I Alliances

In the years leading up to WWI, a series of agreements between the powers of Europe helped determine where and when battlelines were drawn.

Watch nowWatch now video about World War I Alliances
6:05 minTV-PG

The Harlem Hellfighters

The Harlem Hellfighters were an African-American infantry unit in WWI who spent more time in combat than any other American unit. Despite their courage, sacrifice and dedication to their country, they returned home to face racism and segregation from their fellow countrymen.

Watch now
1:59 minTV-PG

Deconstructing History: U-Boats

These deadly German submarines dominated the waters in both WWI and WWII.

Watch now
3:28 minTV-PG

The One Thing You Should Know About WWI

The story of World War I is vast and intricate, but if you had to know just one thing about World War I, what would it be?

Watch now

Stories

See All

Battle of Cambrai, World War I, WWI battles

Featured

How Imperialism Set the Stage for World War I

Many of the powers in World War I were competitive in overtaking territories in Europe and Africa.

Read moreRead more about How Imperialism Set the Stage for World War I
Brigadier General Billy Mitchell in cockpit of a Thomas Morse Pursuit Plane. Ca. 1910s.

How Airplanes Were Used in World War I

Even though airplanes were a relatively new invention, the race for air superiority started during World War I.

Read more
Beginning of World War I between Austria-Hungary and Serbia: Fighting near the bridge over the Sava River.

How a Regional Conflict Snowballed Into World War I

When Austria-Hungary declared war on Serbia in 1914, each of their allies quickly joined the fight.

Read more

11 Objects Carried by World War I Infantrymen

Here are some of the essential items that typical American infantrymen carried with them on the battlefields of World War I.

Read more

This Day in History

See All

1925

Benito Mussolini declares himself dictator of Italy

World War I
1919

This Day in History Video: What Happened on January 18

World War I

This Day in History Video: What Happened on December 25

World War I

This Day in History Video: What Happened on November 11

World War I
1916

Battle of the Somme begins

World War I
1919

John Maynard Keynes predicts economic chaos from the Treaty of Versailles

World War I
A+E NetworksOur Family of Brands
  • History Education
  • History Vault
  • Mobile/Apps
  • News
  • Share Your Opinion
Follow History
  • d
  • p
  • m
  • +
  • Biography
  • Crime and Investigation
  • History en Espanol
  • LRW
  • Military History
  • Ad Choices
  • Advertise With Us
  • Accessibility Support
  • Copyright Policy
  • Corporate Information
  • Employment Opportunities
  • FAQ/Contact Us
  • Privacy Notice
  • Cookie Notice
  • Terms Of Use
  • TV Parental Guidelines
  • Contact Us
  • Copyright Policy
  • Privacy Policy
  • Terms of Use
  • Ad Choices
  • Accessibility Support

© 2024, A&E Television Networks, LLC. All Rights Reserved.