The Brexit deal’s toughest nut: guaranteeing that no border emerge between Northern Ireland, part of Britain, and Ireland, which will stay in the EU https://on.wsj.com/2QIALRQ
Britain cannot have unilateral power to end Brexit backstop, Ireland warns May https://www.theneweuropean.co.uk/top-stories/britain-cannot-have-unilateral-power-to-end-brexit-backstop-ireland-warns-may-1-5765390