If you go to Gettysburg and take the time, maybe take a tour, maybe just drive around, read some of the monuments, read some of the plaques, you will come away changed.
Wars are indeed fought by children, by young people who have little to say in where they are sent to die.
I spend half my time in Montana, the other half in New York City. In unique ways, both places help me unwind, and both are the most satisfying places to live I can imagine.