Zephyrus is more of a sub-dialect to Ethans. There are a few differences though.
- City names are bigger
- Occupied red territory is dark red instead of light
- During alliances, the alliance colors are seen all the time even if the alliances aren't fighting.
- No nukes, but other weapons of mass destruction (see season 1 episode 4)
- White borders (not nessecary)
- White ocean
- No curved names
- Countries share occupied land
Example of Zephyrus dialect: Link