Obama and military chiefs from more than 20 nations gathered Tuesday in a show of strength against Islamic State fighters in Iraq and Syria.
US, Foreign Military Chief Discuss Anti-IS Coalition

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U.S. President Barack Obama speaks at a meeting with more than 20 foreign defense chiefs to discuss the coalition efforts in the ongoing campaign against Islamic State militants at Joint Base Andrews in Washington, Oct. 14, 2014.

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U.S. President Barack Obama speaks at a meeting with more than 20 foreign defense chiefs to discuss the coalition efforts in the ongoing campaign against Islamic State militants at Joint Base Andrews in Washington, Oct. 14, 2014.

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Turkish Lt. Gen. Erdal Ozturk, second from left, and others, listen as President Barack Obama speaks during a meeting with more than 20 foreign defense ministers on the ongoing operations against the Islamic State group, Andrews Air Force Base, Maryland,

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From right, Netherlands General Tom Middendorp, Chief of Staff of the Qatari Armed Forces Major General Ghanim bin Shaheen Al-Ghanim, Chief of Defense for Spain Admiral Fernando Garcia Sanchez, and Vice Chief of Defense of Denmark Lieutentant General Ludv