Sartania didn't lose because Lasanar fell - Cathay and Aenilia were running that war, and Orphen had a policy of never killing off realms. Galiard didn't, but Jenred convinced both of them to not only spare Arcaea but to help restore part of it if a new government were put in place and certain changes made.
Lasanar was already circling the drain by then and wasn't going to be able to do much about it one way or the other.
