The best way to teach history would be to make politicians dig slit trenches and then shell them for a few days. Anything less than that people will always end up regurgitating ethno nationalist bullshit or "geopolitics".
> The best way to teach history would be to make politicians dig slit trenches and then shell them for a few days
I don't see why you think that. That didn't work for Hitler, Göring, and the countless numbers of WW1 veterans in the SA and SS hungry for another try.
I look at European leaders and they don't seem to remember it any better.