WORLD  ·   January 13, 2014

Fighting in Iraq highlights age-old conflict

- The battle between Islam's two major branches began centuries ago, but it's still affecting Iraq's path to a stable democracy now. The Post's senior national security correspondent Karen DeYoung explains. ()

- The battle between Islam's two major branches began centuries ago, but it's still affecting Iraq's path to a stable democracy now. The Post's senior national security correspondent Karen DeYoung explains. ()

Fighting in Iraq highlights age-old conflict (2:19)

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