The open border has helped keep the peace for 20 years.
Help us make more ambitious videos by joining the Vox Video Lab. It gets you exclusive perks, like livestream Q&As with all the Vox creators, a badge that levels up over time, and video extras bringing you closer to our work! Learn more at http://bit.ly/video-lab
Northern Ireland is part of the UK, but because of a special power-sharing agreement...
Embed & Share