Planes were a very new invention, they were rare and fragile. But when World War One started they became weapons. Pilots could spy on enemy targets and the first bombs were dropped from the air.

The first world war saw the first widespread combat use of modern chemical weapons, starting with the 168 tonnes of chlorine released by the Germans over the trenches near Ypres. Officers hoped ...

World War I continues to be an opportunity to look back at some of the fascinating and terrible weapons the United States introduced on the battlefield. Unfortunately, these advancements would ...

A woman inherits a map of a World War I battlefield in France from her grandfather, an engineer under General Pershing. The map is of St. Mihiel, a little-known but key battle in which U.S. forces ...

Russian forces pushing their grinding offensive in eastern Ukraine "appear to be" resorting to World War I-era chemical weapons in their bid to dislodge Kyiv's defending units, according to the ...

Some examples: Unrestricted use of chemical agents caused 1 million of the 26 million casualties suffered by all sides in WWI. It started ... The horror of chemical weapons left the world reeling.