Britain's foreign secretary warned the European Union on Thursday that the U.K. will have “no choice but to act" to revoke parts of a Brexit agreement on Northern Ireland if the EU does not show flexibility.
Post-Brexit arrangements for border and customs checks in Northern Ireland have become “the greatest obstacle” to forming a new government in Belfast, Foreign Secretary Liz Truss said during a call with European Commission Vice President Maros Sefcovic.
