Combat in Yemen Risks Stirring Sectarian Hatred

Three weeks of fighting across Yemen may be pushing a country where Sunnis and Shi'ites have prayed in the same mosques for centuries toward a sectarian war.
Most combatants deny they are motivated by religion in the conflict. Iran-allied Shi'ite Houthi rebels say they are leading a just revolution and Sunni Muslim Saudi Arabia contends it has been bombing the Houthis to protect the Yemeni state.
Militiamen from the south cite defence of their homeland.