Northern Ireland Leader Quits as Brexit Deal Raises Tensions

Northern Ireland’s First Minister Arlene Foster laid out her plan to quit, sparking further upheaval at a time when London and Dublin are seeking to calm tensions in the region.

Foster’s exit as head of the Democratic Unionist Party and leader of the province risks amplifying instability in Northern Ireland, which has recently endured some of its worst violence in years. That was fueled in part by a Brexit settlement which essentially created an economic border between the region and mainland Britain.