1915: World War One's Year of Poison Gas, Genocide, and Millions of Refugees

Published: Oct. 8, 2020, 6:25 a.m.

In 1915, the Central Powers and Allies dug in their heels and tried desperately to break the stalemate of the war, still hoping for a short conflict on the scale of a few months. Poison gas was used for the first time. Germans experimented with...