BRUSSELS—The European Union warned the British government on Sept. 7 that any attempt to renege on commitments made ahead of its departure from the bloc earlier this year could put at risk the hard-won peace in Northern Ireland.
The comments show growing signs that trust between the two sides is evaporating ahead of another round of Brexit trade talks on Sept. 8 in London. Britain left the bloc on Jan. 31, but the two sides are in a transition period that ends at the end of this year and are negotiating their future trade ties.
