U.S. special forces

President Rodrigo Duterte, talks to troopers during his visit in Jolo, Sulu province, Mindanao, southern Philippines. (Presidential Communications Operations Office)

A U.S. military policeman stands in front of a U.S. Air Force F-22 Raptor fighter jet at the Siauliai airbase, some 230 km (144 miles) east of the capital Vilnius, Lithuania, Wednesday, April 27, 2016. (AP/Mindaugas Kulbis)