German Chancellor Angela Merkel welcomes US President Donald Trump as he arrives to attend the G20 summit in Hamburg, northern Germany, on July 7, 2017. Leaders of the world's top economies 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 / Odd ANDERSEN (Photo credit should read ODD ANDERSEN/AFP/Getty Images)
