EU suing UK over move to rewrite trade

BRUSSELS — The European Union sued Britain on Wednesday over its move to rewrite the trade rules agreed to when the country left the EU two years ago, ratcheting up tensions between the economic partners.

Earlier this week, British Prime Minister Boris Johnson’s government proposed legislation that would remove customs checks on some goods entering Northern Ireland from the rest of the U.K. Those checks were imposed as part of a hard-fought compromise when Britain left the EU and its borderless free-trade zone — but have caused both economic and political problems in Northern Ireland, where some say they undermine the region’s place in the United Kingdom.

The EU has decried Britain’s effort to rip up part of the deal.

“Let’s call a spade a spade: This is illegal,” European Commission Vice President Maros Sefcovic told a news conference in Brussels, Wednesday.

The EU’s decision to pursue legal action raises the possibility that either or both sides could impose punishing tariffs on the other.

Sefcovic refused to rule out such a move Wednesday. But the prospect of trade war still seemed a distant possibility since both would suffer and have said they want to find a solution outside of the courts.

The 27-nation EU is the U.K.’s biggest trading partner.

At the heart of the dispute — and the whole reason a compromise was needed in the first place — are concerns about stability in Northern Ireland, which is the only part of the U.K. that shares a border with an EU country, namely Ireland. The checks were imposed in order to keep that border open because that is a key pillar of the peace process that ended decades of violence in Northern Ireland.