A top leader has demanded that Britain get 'as close as possible' to Brussels as part of negotiation.
The Prime Minister will become the first UK leader to attend an EU summit dinner since in 2020 as he attempts a major renegotiation with the bloc.
Arriving in Belgium for the meeting this morning, Polish premier and former head of the European Council set out his key expectation from Sir Keir.
He told the waiting media: "I am really keen that, regardless of Brexit and its consequences, to have the UK as close as possible to the EU when it comes to security issues, defence industry, and to find ways to eliminate or reduce barriers in trade between the UK and Europe."
"Today is the moment to get as close as possible again."
A senior French Diplomat has also said Sir Keir's attendance is proof that Brexit hasn't worked.
The meeting comes as begins the opening shots of his trade war, with huge tariffs on Canada and Mexico and threats of tariffs on the EU.
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