If we did SA would crush us under an uber-Alliance. We'd have Iashular, Astrum a bunch of threatened Farronites,Corsanctum would show up to 'defend' SA lands. Morek would sign an immediate peace with Libero and send over one guy. Morek would threaten Swordfell immediately Swordfell would fall to its knees terrified and declare war, then with some IRC or secret talks SA would manage to get the Lurias to declare war for no reason at all. Falkirkia would declare war because someone just converted to SA and had a change of heart. Then Aurvandiil would just finish their paper on federation with Astrum, now 71 new SA Aurvandiil convert zealots come over the ocean like a plague of locusts, the Moot seeing what going on all of their leaders freshmen in SA all excited, join into the war.... Etc etc
Im joking of course...
Kinda...