Today marks the 105th year anniversary of the Battle of Osowiec Fortress (Aka, the Attack of the Dead Men). The battle consisted of shelling and the attack of chlorine gas. Despite their injuries, the Russians fought hard, and pushed the Germans back.

"The gas caused the grass to turn black and leaves to turn yellow, and the dead birds, frogs and other animals and insects were lying everywhere. Terrain looked like Hell."

—Description of the effects of the gas.