A guard tower stands at the perimeter of Camp Delta in the Guantanamo Bay detention center on March 30, 2010. On Sunday, the Pentagon announced five Yemeni detainees had been transferred to the United Arab Emirates. John Moore/Getty Images hide caption

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Venezuelan President Nicolas Maduro is welcomed by Saudi Crown Prince Salman in Riyadh on Sunday. The meeting was part of Maduro's diplomatic tour of OPEC members to discuss falling oil prices, which have hit Venezuela's economy hard. Reuters /Landov hide caption

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Maj. Mariam Al Mansouri, the first Emirati female fighter pilot, flew in the first UAE airstrikes in the American-led campaign against ISIS. AP hide caption

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United Arab Emirates Shows Off Its Military Might

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A Saudi woman poses in this picture to illustrate driving a car in Jiddah as part of a June 2011 protest. An advisory council recently recommended for the first time lifting a ban on female drivers. Susan Baaghil/Reuters/Landov hide caption

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A member of the Saudi border guards mans a machine gun at the border with Iraq in July. Since the so-called Islamic State launched its offensive this summer in Iraq, Saudi Arabia has sent thousands of troops to the region. Faisal Nasser/Reuters/Landov hide caption

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Facing Threats From ISIS And Iran, Gulf States Set To Join Forces

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An A-18C Hornet attached to Strike Fighter Squadron (VFA) 87, prepares to launch from the flight deck of the aircraft carrier USS George H.W. Bush (CVN 77) to conduct strike missions against Islamic State group targets. Robert Burck/AP hide caption

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A photo released by the U.S. Navy shows the guided-missile cruiser USS Philippine Sea launching a Tomahawk cruise missile against Islamic State targets in Syria on Tuesday. Eric Garst/U.S. Navy/EPA/Landov hide caption

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A photo provided by Lockheed Martin shows a test of its THAAD missile interceptor system. The Pentagon has awarded a contract worth more than $3.9 billion for the system. Lockheed Martin hide caption

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A family of elephants in Kenya's Maasai Mara game reserve. Tony Karumba/AFP/Getty Images hide caption

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