The Germans unleash a new deadly weapon—chlorine gas—at Ypres, Belgium, on the Western Front.
Two frigates, His Majesty’s Canadian ships Swansea and Matane, destroy U-311 while on convoy duty in the North Atlantic.
In Belgium, Canadian infantry dig in after attacking Mauser Ridge west of Kitchener’s Wood near St. Julien.
United Nations forces come under attack in the Kapyong Valley in Korea. 2nd Battalion, Princess Patricia’s Canadian Light Infantry is hit hard, but holds onto Hill 677. The PPCLI later receives the U.S. Presidential Unit Citation.
Deadly chlorine gas is released by the Germans into no man’s land opposite the 15th and 8th Canadian battalions. Waves of German infantry follow the cloud. A barrage in...