The First Land
As their name implies, the air guild controls flight in the land. Their brand of sorcery is suited to using fire rocks to propel every air ship for a two man flyer to the largest national dreadnaughts.
No ship beyond a frigate is built without using an air guild engine room staffed by air guild sorcerers.
The air guild sets strict limits on the production of capital ships during this time of war, all embassies have reached out to the air guild to increase the fleets.
It is rumored that while the air guild operated a small fleet of their own dreadnaughts, they are unbeatable by any national airship.