David Cameron, U.K. prime minister, left, shakes hands with Shinzo Abe, Japan's prime minister, outside number 10 Downing Street in London, U.K., on Thursday, May 5, 2016. Abe is due to discuss Japanese-European relations at a news conference. Photographer: Simon Dawson/Bloomberg via Getty Images
{"Image ImageDescription": "David Cameron, U.K. prime minister, left, shakes hands with Shinzo Abe, Japan's prime minister, outside number 10 Downing Street in London, U.K., on Thursday, May 5, 2016. Abe is due to discuss Japanese-European relations at a news conference. Photographer: Chris Ratcliffe/Bloomberg via Getty Images", "Image Copyright": "?? 2016 Bloomberg Finance LP"}