I’ll try to simplify as much as possible here.
Two factions. Diametrically opposing viewpoints. World war.
On one side, science and technology has created a new way of life. Think something akin to Syndicate, just without the corporate takeover. In addition, energy weapons and deflector shields are widespread.
On the other side, mysticism and spiritualism are the order of the day. They seek harmony with nature, rather than to manipulate and control it. Basically, think of any typical JRPG setting. Just add a few cartridge based firearms here and there, with airships and such in some cases.
It’s a turn based strategy game. I expect multiple turns per day, possibly even per hour if the GM’s up to it.
Multiple fronts, though each player is only responsible for one. Multiple players from each side can end up fighting on the same front.
Each unit is different, and each player controls an entire division or equivalent.