[Snake]

The general gist of the idea is fine, but that may need a lot of sanding. I honestly would think it'd be best if there were like... "multiple war types" the leaders could either handshake or go on a rock-paper-scissors to decide what to pick from if they're not agreeing. And from there, it'd influence the goals and the ways to achieve it.

It could be similar to war games. Go in there, capture the flag, go back.

It could be a cold war, where they try to earn the favors of other nations.

It could be a territory 'king of the hill' match over a prolonged timespan.

It doesn't need all to be done at once or in the same sitting like it is right now, but that's just me. And in terms of fairness, it can only be close to that, but never perfect. There'll always be a dissatisfied customer somewhere, so I'd not hammer down too much on that aspect.