I always took some solace, growing up during the Cold War, that my country's call would be worth answering. I emphatically don't think "my country, right or wrong"; some wars, like the American War of Independence (okay, not a recent example) I am very glad indeed that we lost. We were incompetent and deserved it. But it's not like the Middle Ages: like doesn't go to war with like anymore just because King A's distant ancestor had a claim on territory currently held by King B. When we go to war nowadays it is – mostly – over way of life, and for all the many faults of the western world, I prefer our way of life to any other.
WW1 served no directly useful purpose at all. It broke the age of empires – but that was an unintended side effect. The empires slugging it out considered themselves unbreakable and were as surprised as everyone else when it all went to pieces. Sometimes I treacherously wonder how bad it would have been if we’d lost. Would we have produced some home-grown hate-filled little corporal who would rise to dictatorship and start another world war? Possibly. It's unknowable. What happened is what happened, so let's start from there. I would say that, with the grip of the aristocracy broken, other unintended side effects could come crawling out of the woodwork that include feminism, civil rights for non-whites and much more representative democracy than before. It took time, but it happened. I would rather live in a world that has these things, and the unfortunate legacy of WW1 to look back on, than a world still trundling along under the smugly patrician tug-yer-forelock outlook of the early twentieth century. The war taught us new and modern ways of killing people but it taught us to be better in new and modern ways as well.
Of course, even in the justest war ever (whichever that was), in the bloody heat of combat no one ever thinks about the issues. It comes down to: that person's trying to kill me, better kill him first. We have the advantage of being able to look back.
So, I honour the memory of those who died and I was glad to take a couple of minutes out at 11am to think of them. I don't honour their memory because what they did was in any way glorious or heroic. (They certainly didn't think so.) I honour them because they laid the foundations of the era in which I was born and grew up; and because of them, even though we still go to war from time to time, since 1918 we have put more effort into preserving peace than in starting a new fight. It doesn't always work, and when it fails it fails spectacularly, but it works more often than not. That may be as good as it gets.