In Shattered Union, a number of factions are vying for dominance of the former United States. Each faction has its own unique unit, powers, and starting territory.
There are eight factions in total.
- Occupiers
- Russia (non-playable in campaign mode)
- The European Union
- American factions
- The Confederacy
- The Great Plains Federation
- Independent Commonwealth of Hawaii (non-playable)
- Alaska (non-playable)
- The New England Alliance
- Pacifica
- The California Commonwealth
- The Republic of Texas