People really need to get over making differences between countries/races.
We are all human and morally judging a specific set of peoples is ridiculous.
Nationalism was massive everywhere at this point in history and it goes a long way to explain the atrocities committed by ALL sides (and those continuing today...)
Nationalism paired with a surge in interst in Darwinism/Occultism explains the birth of Nazism. The ideas of "racial hygiene" came way before Hitler or Goebbels
On topic...

I find 2 cons then 2 maxims and a mortar works pretty well on most maps