Questions remain, but both sides agree to move on

BRUSSELS — Britain and the European Union hailed a breakthrough Friday that allows them to begin talks on their postbrexit relations without answering some key questions about how their divorce will play out.

With pressure building on British Prime Minister Theresa May’s fragile government, the sides agreed on the last sticking point in Britain’s divorce terms: the border between EU member Ireland and the United Kingdom’s Northern Ireland.

They both accepted that the border must remain open once Britain leaves the bloc in 2019, although they left it unclear how that would happen in practice. After a hectic night of phone diplomacy, the Northern Ireland party blocking a deal, and propping up May’s Conservative government, said it was satisfied.

Negotiators also reached a broad agreement on the other terms, which the EU had required before it would allow the talks to move on to the weighty questions of future relations which had been keeping businesses and financial markets on edge.

The sides agreed on the rights of both British citizens in EU countries and EU nationals in the U.K. They also ironed out the terms of Britain’s financial obligations to the bloc, which could total some 50 billion euros ($59 billion).

Just after dawn, with the British flag flying outside its headquarters, the EU’S executive body, the European Commission, said it was satisfied with May’s proposals and recom mended that the talks move to the next phase. Leaders of Britain’s 27 EU partner countries are expected to ratify that decision at a meeting Thursday in Brussels.

“I believe that we have now made the breakthrough that we needed,” Commission President Jeanclaude Juncker said during a news conference with May. EU lawmakers, who must ratify any full Brexit agreement, also endorsed the deal.

The arrangement buys time, particularly for May’s government, which EU negotiators have complained of being indecisive in what it wants amid an internal fight over the direction the country should take.

A final Brexit agreement must be found by next autumn to leave time for national European parliaments to endorse it.