I do like covering these topics and there are a lot of memorials around. With so many nations involved, there are a lot of stories.

The Dutch were involved as well. I don't know much about their involvement, but it seems they were involved in a few battles and have some memorials, too. I found this

I've always wanted to see some of the sites in France and a few in Russia, too. These places are pretty much the only destinations you can go to where people aren't trying to sell stuff.
I haven't seen 1917 yet. I should get around to watching it.