Five issues likely to dominate the G20 summit in Japan

U.S. National Security Adviser John Bolton and Japanese Foreign Minister Taro Kono walk to attend their meeting prior to G-20 summit in Osaka, western Japan, June 27, 2019. Eugene Hoshiko/Pool via Reuters

OSAKA (Reuters) - World leaders are descending on Osaka, west Japan, for a summit on Friday and Saturday of the Group of 20 (G20) big economies.

Here are five issues likely to dominate the meeting, hosted by Japanese Prime Minister Shinzo Abe.