LONDON—Tense post-Brexit relations between Britain and the European Union face further strain on Wednesday, when the UK calls for major changes to trade rules agreed on by both sides.
Brexit minister David Frost will set out proposals for smoothing out trade arrangements for Northern Ireland, the only part of the UK that has a land border with the 27-nation bloc. The divorce deal agreed before Britain’s departure means customs and border checks must be conducted on some goods moving between Northern Ireland and the rest of the UK.
