British Prime Minister Theresa May (2nd R) meets Australian Prime Minister Malcolm Turnbull (not pictured) during a bilateral meeting on the sidelines of G20 Summit in Hangzhou on September 5, 2016. G20 leaders meet in China under pressure to reboot the world economy, after host leader Xi Jinping warned against "empty talk" and a rising mood of protectionism that threatens globalisation and free trade. / AFP PHOTO / POOL / ALY SONGALY SONG/AFP/Getty Images