WorldViews: Why Sunnis and Shiites are fighting, explained in two minutes
The divide between the Sunni and Shiite branches of Islam is both ancient and still highly consequential today. In Syria, a Sunni-majority country dominated by members of a Shiite sect, fighting that began as anti-government has taken on sectarian overtones. That has spilled over to Iraq, which is Shiite-majority and has a predominantly Shiite government but is increasingly troubled by Sunni rebels. And the region's major powers have long pushed sectarian interests, with Shiite-majority Iran on one side and Sunni-majority Saudi Arabia on the other.
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