text: "Lt.-Gen. Currie’s troops suffered 8,677 killed, wounded or missing in the 10 days of battle; German estimates of losses ran between 12,000 and 20,000."
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  I doubt very much that the second part of this statement is correct. I'm sure "German estimates" were a lot more precise. Even the Canadian military's estimates of German losses at the time were probably more accurate than these vague figures.