It was the day Britain finally put Brexit behind it and assumed its new role in Europe.

The Prime Minister welcomed a host of European leaders to a London summit with nothing less than the security of the Continent at stake.

As he sat down in the grand surroundings of Lancaster House, Sir Keir Starmer had Emmanuel Macron to his right and the under-pressure Volodymyr Zelensky to his left.

The three leaders are working on a peace plan for Ukraine to present to Donald Trump. It includes British and French troops as part of a peacekeeping force.