A centuries-old debate about how Ireland should be governed has been reopened. And the Irish question in turn will play a role in determining what form Brexit takes.http://on.wsj.com/2BrPqwC
RT @jhsugden: Britain's waking up to the Brexit vote results. Follow the play-by-play on WSJ. http://www.wsj.com/livecoverage/eureferendum https://t.co/5QNzLYFh8A