SEPLA-BALPA
From what I can see on this thread SEPLA Iberia pilots are more united than BA pilots. That will help, him in their current negotiations.
It looks as if the Spanish government will get involved ( ha! dunno what effect thatñll have ) if IAG scales down Iberia too much. Through the Spanish goverments nationalization of Bankia, they own a significant percentage ( ? % ) of Iberia and IAG.