There is a place in northern Italy, northeast of Verona, where there is a lovely spot overlooking a river valley. So beautiful now, with vineyards and thousand foot limestone cliffs. Sight distance is about 15 miles in either direction.
During WWI, there was an artillery brigade stationed there. Their mission was to hit anything that moved in the valley, which was a supply line. They got pretty good at it, from all reports. As usual, the killing technology of the day exceeded the humans' judgment to use it. Being a fixed position, they could not advance themselves. The other side periodically made a senseless charge to free up the valley, but no way.
So from what I understand, this basically went on for about four years. Neither side could get the advantage. What were they thinking? You have to wonder at what point they forgot why they were there in the first place. Silly humans.
At the end, they entombed the dead in a mausoleum, placed at the same spot. 50,000 in all, roughly the same as the current living population of the valley. Didn't matter which side they were on. They put them all in there together.
Here it is, just in case you think I am some kind of BS artist that makes this stuff up.
Rovereto Mausoleum
Anyway, eventually they took the scrap artillery pieces, and cast it into a giant bell, which they ring on special occasions. Probably today is one of those occasions.
There are monuments like this all over Europe.
The point of all of this: If there was one of these monuments in every middle sized town in the US, where there would be a daily reminder of the stupidity, we would probably be a lot more reluctant to repeat the mistake with our current generation of young people. Just saying.
p.s. Today, the local population there is completely delightful. Fun loving, kind of an artistic place, since there is a famous music school there, attractive females, food and the local vintage absolutely wonderful. Nice and laid back, but with a young population so as to have a little night life. Right on the train line, so you can get there cheaply from anywhere in Europe. I highly recommend it.