U.S. air strikes target insurgents near Iraq's Haditha Dam

BAGHDAD/TBILISI (Reuters) - U.S. warplanes carried out five strikes on Islamic State insurgents menacing Iraq's Haditha Dam on Sunday, witnesses and officials said, widening what President Barack Obama called a campaign to curb and ultimately defeat the jihadist movement.

Obama has branded Islamic State an acute threat to the West as well as the Middle East and said that key NATO allies stood ready to back Washington in action against the well-armed sectarian force, which has seized expanses of northern Iraq and eastern Syria and declared a border-blurring religious caliphate.