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But perhaps the most important innovation in the doctrine of jihad was its outright prohibition of all but strictly defensive wars. “Fight in the way of God those who fight you,” the Quran says, “but do not begin hostilities; God does not like the aggressor” (2:190). Elsewhere the Quran is more explicit: “Permission to fight is given only to those who have been oppressed ... who have been driven from their homes for saying, 'God is our Lord' ” (22:39; emphasis added).