The Central Powers troops cross the Danube River and within days capture Belgrade. A massive Serbian retreat follows. Soldiers and their families made their way to the Albanian border through...

British and Indian forces move up the Tigris River to capture Kut-al-Amara in Mesopotamia from Turkish forces. Their ultimate goal is Baghdad, roughly 100 miles from present-day Baghdad in Iraq. ...

French and American forces of the 3rd, 28th, 32nd, and 42nd Divisions go ‘over the top’ on their offensive south of Soissons. Severe fighting along the Ourcq River establishes the reputation of the...

In London, women demonstrate for the right to work in war industries with banners proclaiming: “Women Demand the Right to Serve” and “The Situation is Serious – Women Must Help...

From flank to flank, 665,000 Allied soldiers are assembled for this offensive. The 304th Tank Brigade, commanded by Colonel George S. Patton, draws the fledgling American tank corps’ first blood. By...

A six-month campaign conquers the German colony, capturing its wireless stations and strategic harbors.

A final attempt by Allied troops to take Krithia, a coastal city in Turkey, is unsuccessful. Field Marshal Kitchener decides to send three additional divisions as reinforcements. The Turks also bring...

The Cunard passenger ship Lusitania sinks in British waters. It was attacked by German U-boat U-20, commanded by Kapitanleutnant Walther Schwieger.

Through the neutral Swiss government, German Chancellor Prince Maximillian sends a note to President Wilson requesting him to restore peace through an immediate armistice with terms. The request is...