Three A-10 Thunderbolt II aircraft fly in formation over Tucson, Ariz., during an air refueling training mission, April 14, 2006. (Senior Airman Christina D. Ponte/DefenseLINK/Released)
Chinese Foreign Minister Wang Yi visits the Western Wall, Judaism's holiest prayer site, in Jerusalem's Old City on December 20, 2013. (AHMAD GHARABLI/AFP/Getty Images)
Philippines' President Rodrigo Duterte (R) by his Chinese counterpart Xi Jinping before a signing ceremony in Beijing on October 20, 2016. (NG HAN GUAN/AFP/Getty Images)