This whole middle east story, is about more than the drugs and oil, as the west (USA, UK, etc.) have supported both sides at one time or another.
The side they supported was the 'puppet in their interest', but as shown many times in the past that if you cannot win the minds and souls, you cannot win
The souls are not winnable, as the opposing groups are fundentally different in religion and culture.
The trick is to just leave the cultures alone and let them destroy (or develop) themselves. Even when they're divided don't think that it's a good time to attack as this idea has backfired in a big way, many times throughout history.