North Korea
"I think part of Trump's most recent comments … you'll recall on the campaign trail he made a series of controversial comments about Japan and South Korea, potentially interest being served by developing nuclear weapons. And then when challenged he really doubled down and said maybe it would be a really great idea. So I see this most recent statement as part of that trend. I think the slightly encouraging thing is the statement that we've now had from Mattis, in particular, which starts to re-emphasise over the military angle the diplomatic side of things."