The Sykes-Picot Agreement undermines Arab hopes for independence. Syria and Lebanon are placed in the French orbit, while Britain claims Jordan, Iraq, the Gulf states and the Palestinian Mandate.

At Belleau Wood, U.S. Marines launch an attack against German storm troopers. Two battalions of Marines, along with army engineers and infantry, confront German storm troopers in a seesaw battle that...

After the March 24 sinking of the passenger ship, Sussex, Woodrow Wilson again threatened breaking off relations with Germany. To avert the threat of America entering the war on the side of the Allies...

By war’s end, the U.S. Navy places a total of 56,570 sea mines, helping to create a 300-mile barrier against Germany, stretching from Scotland to Norway. At least five U-Boats were sunk by the barrage...

The CWS coordinates all aspects of chemical warfare including administration, research, gas defense, gas offensive, development and medical training.

The ANZACs are troops from the British Commonwealth countries of Australia and New Zealand.

Anti-war demonstrations take place in Berlin, Jena, Dresden and other German cities.

This French Army flying unit is composed mostly of American volunteers. Thirty-eight Americans serve in the Lafayette Escadrille and are credited with 57 victories.

German troops begin to round up Belgian workers for deportation to Germany. They are assembled in daily batches of 1,400 men and women in equal numbers.