Some thoughts

[varywarthegreat]

Why reach is not in alliance with Storm lands and riverlands is not in alliance with the north?
Lords is executing themselfs or only player can do that?
Lord or his gouard can die in battle?

[Indo95]

yep, the reach hasn't allied with the stormlands in my playthrough either, but the riverlands eventually ally with the North. Also, the targaryens aren't allying with Dorne either

[H3YimDR3W]

I've had 8 playthroughs/new games since BETA .9, in every one Dorne always allies with Targaryens, riverlands always allies with north. However! Sometimes the reach allies with the stormlands (50% of playthroughs) and the other 50% they just sit independent.