China's President Xi Jinping (L) and his wife Peng Liyuan wave as they disembark their plane after arriving at the airport in Hamburg, northern Germany on July 6, 2017, to attend the G20 meeting. Leaders of the world's top economies will gather from July 7 to 8, 2017 in Germany for likely the stormiest G20 summit in years, with disagreements ranging from wars to climate change and global trade. / AFP PHOTO / PATRIK STOLLARZ