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WASHINGTON, DC - JUNE 1: U.S. President Barack Obama (R) meets with King Willem-Alexander and Queen Maxima of the Netherlands in the Oval Office of the White House on June 1, 2015, in Washington, DC. The Dutch leader and queen, who are on their first visit to the U.S. since ascending to the throne in April 2013, spoke about issues including the Ukraine, fighting ISIS in Iraq and global health concerns, according to published reports. (Photo by Aude Guerrucci-Pool/Getty Images)

WASHINGTON, DC - JUNE 1:  U.S. President Barack Obama (R) meets with King Willem-Alexander and Queen Maxima of the Netherlands in the Oval Office of the White House on June 1, 2015, in Washington, DC.  The Dutch leader and queen, who are on their first visit to the U.S. since ascending to the throne in April 2013, spoke about issues including the Ukraine, fighting ISIS in Iraq and global health concerns, according to published reports.  (Photo by Aude Guerrucci-Pool/Getty Images)