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The decision by the Obama administration to intervene militarily in Iraq to prevent a potential "genocide" against a religious minority, could potentially strain relations with Sunnis, who constitute the overwhelming majority of Muslims in the Middle East and wider Muslim world. The U.S. has stepped in to protect the Yazidi minority, and to stem the mass expulsion of Christians from their towns by the al Qaeda offshoot, ISIS -- which is now calling itself the "Islamic State" or "IS." Most Arab and Muslim-majority nations have expressed their concern about the ascendancy -- and brutality -- of ISIS in Iraq, and have designated it as a terrorist organization.

In the minds of many, U.S. military action to protect