Watch President Obama address the nation on the Islamic State Group


In a major reversal, President Barack Obama ordered the United States into a broad military campaign Wednesday night to "degrade and ultimately destroy" Islamic State militants in two volatile Middle East nations authorizing airstrikes inside Syria for the first time as well as an expansion of strikes in Iraq.

The president added that the U.S. will send 475 more U.S. troops into Iraq to supplement an existing American military presence that is helping Iraqi security forces battle Islamic State militants and secure diplomatic facilities.

Obama announced the additional forces Wednesday in a prime-time speech to the nation.
The new troops would join more than 1,000 U.S. military personnel in Iraq and would be embedded with Iraqi security forces and help identify targets for U.S. military airstrikes against the extremist group.

The U.S. already has more than 750 U.S. military personnel supporting diplomatic security at facilities in Baghdad and nearly 300 at joint operating centers in Baghdad and Irbil.

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