 At 07 : 30 on 15 December , two companies of the Carleton and York Regiment attacked . After little more than an hour of fighting , however , the Canadians were forced to call the attack off . In the afternoon , the two heavily depleted companies of the Royal 22e Régiment fought off a large German counterattack on Casa Berardi , with the Royal Canadian Horse Artillery firing 5 @,@ 398 rounds in support of Canadian forces . 
