US President Barack Obama (L) and Poland's President Andrzej Duda (R) attend a press conference following a bilateral meeting on the sidelines of the NATO Summit in Warsaw, Poland, on July 8, 2016. The Polish capital Warsaw hosts a two-day top-level NATO meeting, first time since Poland joined the alliance in 1999. / AFP / MANDEL NGAN (Photo credit should read MANDEL NGAN/AFP/Getty Images)
