There was/is a game called Shattered Galaxy that was best described this way.

Several factions continuously battling over discrete territories. There would be calculations throughout the day that would give certain bonuses to whichever factions were winning.

Every territory had a field commander that could request people join that had leveled up certain types of units based on how the battle was evolving.

There was also a form of player controlled government in each faction that could choose bonuses and allocate resources to various battles.

It was really cool for its moment in time.