The first gas attack in history overwhelmed the French troops entrenched near the small town of Ypres, in Belgium. When they awoke on the morning of Thursday, April 22, 1915, the soldiers saw an enormous greenish cloud creeping towards them across no-man’s-land.
................and what horrible deaths they suffered too. Described in horrific/forensic detail by this author. Just terrible. Oh, and let's not forget the wildlife, farm animals and horses that also died terrible deaths.