FILE - In this Thursday, Sept. 17, 2015 file photo, Saudi security forces take part in a military parade in preparation for the annual Hajj pilgrimage in Mecca, Saudi Arabia. Saudi Arabia said Tuesday, Dec. 15, 2015 that 34 nations have agreed to form a new "Islamic military alliance" to fight terrorism with a joint operations center based in the kingdom's capital, Riyadh.(AP Photo/Mosa'ab Elshamy, File)
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