Iraqi PM orders troops to make stand in Samarra; U.S. sends aircraft carrier

Iraq's leader directed his troops to make their stand against advancing Sunni militants in a flashpoint city home to a revered Shiite mosque, an order that highlights the sectarian fighting tearing the country apart. Prime Minister Nuri al-Maliki's order came as he sought to put new fire in the belly of his troops in the fight against the Islamic State in Iraq and Syria - an al Qaeda splinter group known as ISIS - that has seized a large swath of land in the north of the country and threatened t

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