I shudder whenever I heard WW1 being called 'the Great War' - it killed millions in the most atrocious of ways, on both sides- and served no purpose at all, none.
I read 'all quiet on the Western Front' as a teenager, and it marked me forever- the film too.
WW2 was very different- and the question often goes through my mind- was it just and necessary? Or would another way been possible? I think it was perhaps necessary- but sometimes I just do not know any more. Woud Hitler have died and run out of power- and the number of deaths be actually less than those created by war? I don't know.
What is for sure, is that the situation now is totally different. There is not one clear enemy in one clear region- so we can't just go and bomb all over the place- without making things much worse.
As for Churchill- he was a brilliant man- but he was very lucky- and even more the soldiers who could have all perished had the weather forecast turned out to be as he was advised. He took a huge gamble, and won. He could have lost too- and that does not bear thinking about.
We have armed all the dictators, to OUR own ends- and have created this terrible situation- with the sale of OUR arms (French, UK, USA and yes... Switzerland too)- and now the world is reaping the results- and there does not seem to be solutions in sight. Bombing 1000s of innocent civilians will just create more and more terrorists...
A separate issue, but I've often wondered. If I was growing up in Gazza now- would I be a pacifist or a 'terrorist' - what is the difference between a terrorist fighting to save his people and country, and a soldier?