WARSAW, July 10, 2016 (Xinhua) -- NATO Secretary General Jens Stoltenberg (R) and Ukrainian President Petro Poroshenko attend a joint press conference in Warsaw, capital of Poland, on July 9, 2016. Saturday, the second day of the two-day Warsaw NATO Summit, brought the confirmation of NATO's support for Ukraine, its sovereignty and territorial integrity. (Xinhua/Shi Zhongyu)