WASHINGTON • Arla Wayne Harrell, the quiet World War II veteran whose appeals to Veterans Affairs became a test of the government’s treatment of victims of mustard gas experiments, has died.

What is tear gas? Learn more about the evolution of tear gas and why some scientists recommend a revaluation of its use.

Mussolini’s Conquest of Ethiopia The war against Abyssinia. This is a book designed not for the academic but for the general reader. And it succeeds in that context, but also is an excellent history ...

Sarin, a nerve agent, can kill within minutes. Chlorine and mustard gas, weapons made infamous in World War I, burn the eyes and skin and fill the lungs with fluid, seemingly drowning people on land.

MOSUL, Iraq – Iraqi forces discovered a mustard chemical warfare agent in eastern Mosul alongside a cache of Russian surface-to-surface missiles, an Iraqi officer said Saturday.