A US serviceman, backdropped by the radar building of a missile defense base, sets up a red carpet in Deveselu, prior to an opening ceremony attended by U.S., NATO and Romanian officials at a base, originally established by the Soviet Union, in Deveselu, Southern Romania, Thursday, May 12, 2016. A U.S missile defense site in Romania aimed at protecting Europe from ballistic missile threats became operational Thursday, angering Russia which opposes having the advanced military system in its former area of influence.(AP Photo/Vadim Ghirda)