[Don't worry Sora, Sephiroth as he is at this very moment isn't about to stab someone who's not attacking him. He also doesn't have the masamune. He has a much shorter katana called ....... Nameless.]

Shinra wants to build a reactor on this land, but the Rhadorans started a war over it. They've mostly lost, but still hang onto a desperate attempt to keep control. That's why I was sent here.

[To end it, basically. So shinra can build their reactor.]