EU Tells Britain’s Johnson: Implement the Brexit Deal

Britain's Prime Minister Boris Johnson (C) greets President of the European Council Charles Michel (L) and President of the European Commission Ursula von der Leyen prior to a bilateral meeting during the G7 summit in Carbis bay, Cornwall, on June 12, 2021. Peter Nicholls/Pool/AFP via Getty Images

CARBIS BAY, England—The European Union told British Prime Minister Boris Johnson on Saturday that he must implement the Brexit deal that he signed to ensure the delicate peace in Northern Ireland and that the 27-member bloc was completely unified on that position.

The United States has expressed grave concern that a dispute between London and Brussels over the implementation of the 2020 Brexit divorce treaty could undermine the 1998 Good Friday peace deal that ended three decades of violence.