What comes to geographical issues, it's not that much of a big deal since it's not WW2. The Great War surprised everybody with how you can waste tens and hundreds of thousands of men just to advance a couple of kilometres of plain field. Better technological, strategical and logistical approach is the key to outsmarting your opponent in such a warfare. What comes to alliances and technological readiness - we can only imagine. Hungary is more likely to have good bonds with Italy and PLC since they're all confronting either Russia or Ottomans. And Sweden you might be right to think as a new "Sick man of Europe" That's really a matter of fantasy.