@Shalvenay As one player put it once, "oh good, it's like we get to roleplay the original sins of our American ancestors." I think I've been chatting with @BESW too much =)
(To be fair, that was a pretty good assessment, until discovery of the zombie army.)
So now the PCs have (a) infiltrated the Gulati necromantic "temple" (b) obtained an artifact called Stonebreaker which should help bring down the fence, and (c) are probably going to pop the cork on a war that's been brewing for years. =)
And they're not quite sure yet which side they actually think is "in the right."