Saddest thing of all, to my mind: 620,000 Canadians mobilized, 67,000 killed, 173,000 injured, many of them cripplingly and permanently. For a country with less than 10 million people at the time, that's a whole generation of young men. And it being an all-volunteer army tells us something about who they were: the adventurous spirits, the bold and brave, the risk takers... We lost more than just those men, we lost a spirit and an attitude too. Imagine how different Canada might be if they'd lived and had children and grandchildren... That's one of Pierre Burton's conclusions in his book about Vimy Ridge. At the end he asks, "Was it worth it?" His answer was no, and so is mine.
In retrospect it's easy to see that it was a stupid war fought for stupid reasons and created the roots of conflicts--notably in the MIddle East--that are still vexing the planet. That's one of the reasons why we ought to remember; you'll never make sense of the current geopolitical situation if you don't understand WW1.
And it's certainly no reason not to honour our fallen and remember their sacrifices. My mother's father and his brothers were there. They all came home again, and they were all physically whole, but other relatives confirmed that they were never the same after that. As one of my Great Aunts put it, all the joy was burned out of them. They were casualties too. Their whole generation was.
Whether Vimy Ridge was worth it or not is something that can be argued for decades and it has been. One point I'd like to make is that Canadian troops had already put in time as cannon fodder for at least a couple of incompetent British generals who inherited their commissions. Vimy Ridge was at least a Canadian planned operation. The 3600 Canadians who lost their lives and the thousands injured at Vimy were a terrible price, but far better than the 11,000 who were cannon fodder and who were so blasted to smithereens that there wasn't enough left to identify. As well, those who came home could be very proud of their achievements. This coming November we might not have a single WW1 veteran at the Remembrance Day ceremonies in Ottawa, but I remember when we had tens of thousands. I just wish we had treated our veterans a little better when they were still here.