Welcome to the apocalypse: It's 1916, and with the threat of chemical warfare lurking around the corner, these British troops stationed in France aren't taking any chances.

A chemical weapon release is believed responsible for the deaths thousands of sheep near the massive Dugway Proving Ground, a military installation less than 100 miles from Salt Lake City, Utah.

Japan's Unit 731 is one of the best kept and most horrifying secrets of World War II. Unit 731 experimented on Japanese and Chinese civilians as well as Russian and American POWs during the Second Sino-Japanese War in the 1930s and throughout World War II.

Over the course of the 1960s, the U.S. Army released a series of videos (at least ten, maybe more) featuring ongoing military R&D projects. The progress reports mostly highlighted advances relating to military equipment — missile operations systems, tanks, personnel carriers, things like that. But at the end of the…

In 1994, the United States Air Force proposed spending $7.5 million on a six-year plan to develop non-lethal chemical deterrents that could be sprayed on enemy combatants.

You don't want to mess with the African ant species Crematogaster striatula — and neither do other insects. This species has a built-in "gas gun" that can paralyze its enemies, giving them a secret weapon in their endless war against termites.