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Musa, a 25-year-old Kurdish marksman, stands atop a building as he looks at the destroyed Syrian town of Kobane on January 30, 2015. (BULENT KILIC/AFP/Getty Images)

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(Sara Jo/Flickr)

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U.S. Secretary of State John Kerry delivers a statement on Daesh and Genocide in the Press Briefing Room at the U.S. Department of State in Washington, D.C., on March 17, 2016. [State Department/Flickr]

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The members of Japan Self-defense Force prepare the Patriot Advanced Capability-3 missile for interception right after North Korea's rocket launch on February 7, 2016 in Ishigaki, Okinawa, Japan. (The Asahi Shimbun/The Asahi Shimbun via Getty Images)