Satan’s aim is that nobody be saved and come to a knowlegde of the truth. And one of his strategies is to start battles in the world which draw our attention away from the real battle for the salvation of the lost and the perseverance of the saints. He knows that the real battle, as Paul says, is not agaisnt flesh and blood. So the more wars and conflicts and revolutions of “flesh and blood” he can start, the better as far as he is concerned.
From the book "Let the Nations be Glad: Supremacy of God in Missions"