I just had to comment here, because of Rin's horrific behavior. I see I'm not the only one upset by her betrayal. While spouting nonsense about Iska being the biggest threat to a dream of world unification, she seems to miss out on the fact that she is actually the biggest threat, herself. Anybody that would use a truce (and the letting down of one's guard as a result of it) as an excuse for an ambush will make it so that nobody will trust future truces. If peace is to be achieved, on a permanent basis, then the ones pushing for that peace need to show themselves to be utterly trustworthy, even when the other side isn't. Rin, while claiming to support Alice, has stabbed Alice in the back repeatedly, and realistically needs to be severely punished (if not killed) for the dream to become reality, as she is too corrupt/untrustworthy, to ever believe in peace. Since Rin would always use a truce as an opportunity to backstab, she will assume the other side will, too, and never trust them, thus always looking for a way to "attack/betray before being attacked/betrayed". Rin, and people like her, are the reason these two side are still at war.