Ian Bond, director of foreign policy for the Center for European Reform in London, said: “Britain’s attempt to degrade the EU delegation seems trivial and is guaranteed to deteriorate confidence, while Britain needs friends in Brussels is. “

“It’s interesting that Trump tried the same trick, but he had to hold back,” he said. A similar attempt to downgrade the post of EU ambassador to Washington two years ago.

“Is this a good example?” Mr. Bond said.

Ambassador David O’Sullivan’s sentiment became apparent at the funeral of President George HW Bush in December 2018, when Mr O’Sullivan’s name was not withdrawn in the expected order. The names of diplomats gathered in Washington to pay tribute to the former president were read, as usual, from the oldest ambassador to the most recent, but Mr. O’Sullivan was eventually called.

Mr. Trump was known to hate the European Union, which he compared to an ally and a competitor, not an ally. But after the news broke, Gordon Sondland, the former US ambassador to the European Union, was instrumental in persuading the Trump administration to restore the EU’s diplomatic status and participate in the arrangement after three months.

Of course, while Britain was still a member of the European Union, Britain defended the bloc’s diplomatic position with the Trump administration.

The European Union ambassador to London, João Vale de Almeida, is one of the most experienced countries in the bloc. He was previously Ambassador to the United Nations from 2015 to 2019 in the European Union and from 2010 to 2014 in the United States.