BELGRADE, June 18, 2016 (Xinhua) -- Chinese President Xi Jinping (2nd L) and his wife Peng Liyuan (1st L) pose for a group photo with Serbian President Tomislav Nikolic (2nd R) and his wife Dragica Nikolic in Belgrade, Serbia, June 17, 2016. Xi Jinping met with Tomislav Nikolic in Belgrade on Friday. (Xinhua/Rao Aimin)