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Troops of Japan's Ground Self-Defense Force carry emergency aid supplies from a US Marine tilt-rotor Osprey aircraft as part of relief efforts in Minami-Aso, Kumamoto prefecture, on April 18, 2016. Japan on April 18 enlisted US help to airlift supplies to some of the 100,000 people whose homes were damaged or destroyed by earthquakes in the country's south, while rescuers struggled to find nine still missing after a massive landslide. / AFP / KAZUHIRO NOGI (Photo credit should read KAZUHIRO NOGI/AFP/Getty Images)

Troops of Japan's Ground Self-Defense Force carry emergency aid supplies from a US Marine tilt-rotor Osprey aircraft as part of relief efforts in Minami-Aso, Kumamoto prefecture, on April 18, 2016. 
Japan on April 18 enlisted US help to airlift supplies to some of the 100,000 people whose homes were damaged or destroyed by earthquakes in the country's south, while rescuers struggled to find nine still missing after a massive landslide. / AFP / KAZUHIRO NOGI        (Photo credit should read KAZUHIRO NOGI/AFP/Getty Images)