how many years does a state created partially through violent means need to exist before you consider it legitimate? you say that the fact that the state was formed "recently" is an important issue. your example of a Cherokee takeover of the Carolinas is unconvincing, because think about the history of the US. Or, the muslim states that you seem to have no problem with, just because they are older. Or, for that matter, every state in the world, which all have their own unpleasant historical pasts.
Iranian parliamentary panel gives conditional nod to nuke deal (Reuters)