In all honesty, most of those alliances are meaningless. Caligus - Sirion is hardly considered a true alliance and Eponllyn - Sirion is a strange/delicate situation alltogether. Much will change in the coming time I hope, but we'll see what Perdan decides to do, as well as Sirion. Caligus too seems to have gathered many alliances, but so far their war with Xavax seems not to be coming as both sides are afraid.
I'm highly skeptical of this mindset.