The landings initially encountered heavy resistance from the German 716th Division; the preliminary bombardment proved less effective than had been hoped, and rough weather forced the first wave to be delayed until 07:35. Several assault companies—notably those of the Royal Winnipeg Rifles and The Queen's Own Rifles of Canada—took heavy casualties in the opening minutes of the first wave. Strength of numbers, coordinated fire support from artillery, and armoured squadrons cleared most of the coastal defences within two hours of landing. The reserves of the 7th and 8th brigades began deploying at 08:30 (along with the Royal Marines), while the 9th Brigade began its deployment at 11:40.