Britain will soon regret voting for Brexit, but the European Union will move on, the European Commission president has insisted.

In a speech setting out the future direction of the bloc, Jean-Claude Juncker said the UK’s exit would be a “sad and tragic” moment, but it was “not the be all and end all”.

Mr Juncker evoked the Queen to describe how Brexit helped to make 2016 an “annus horribilis” for the European project.

But during the annual state of the union address, he insisted the “wind is back in Europe’s sails” and countries were knocking on Brussels’ door to do trade deals with the EU.

Setting out hopes for closer integration, Mr Juncker announced plans to increase passport-free movement around the EU, expand use of the euro and boost the number of member states.

But the hour-long speech, which ranged over areas as diverse as the quality of fish fingers to plans to create a super-presidency role, Brexit was given a notably short slot near the end.

Mr Juncker said: “This will be a very sad and tragic moment in our history. We will always regret this, and I think that you will regret it as well, soon.

Jean-Claude Juncker's speech ranged from fish fingers to plans to create a super-presidency role
Jean-Claude Juncker’s speech ranged from fish fingers to plans to create a super-presidency role (Jean-Francois Badias/AP)

“Nonetheless we have to respect the will of the British people. But we are going to make progress. We will move on because Brexit isn’t everything, it’s not the future of everything, it’s not the be all and end all.”

In a letter circulated as he made his speech, Mr Juncker said the past 12 months had been “challenging” for Europe.

He wrote: “2016 was in many ways an ‘annus horribilis’ for the European project. From the Brexit referendum, to the terrorist attacks, to slow growth and continued high unemployment in several of our member states, to the ongoing migration crisis, Europe was challenged in many ways.”

The Queen used the latin term “annus horribilis” – horrible year – in 1992 to describe a torrid 12 months during which the Prince of Wales separated from Diana, the Duke and Duchess of York split up, the Princess Royal divorced and Windsor Castle was badly damage by fire.

Nigel Farage described Jean-Claude Juncker's speech as the most open, honest and truly worrying" speech he had heard in his time as an MEP
Nigel Farage described Jean-Claude Juncker’s speech as the most open, honest and truly worrying” speech he had heard in his time as an MEP (Jean Francois Badias/AP)

Former Ukip leader Nigel Farage described Mr Juncker’s address as “the most open, honest and truly worrying” speech he had heard in his time as an MEP.

“The message is very clear,” said Mr Farage. “Brexit has happened, full steam ahead.”

Addressing the Parliament in response to Mr Juncker’s speech, Mr Farage added: “All I can say is, ‘Thank God we’re leaving’.

“You have learned nothing from Brexit. If you had given (David) Cameron concessions, particularly on immigration, the Brexit vote – I have to admit – would never, ever have happened.

“And yet the lesson you take is that you are going to centralise and move on to this very worrying, undemocratic union.”

Mr Farage said Mr Juncker’s vision for the future EU of 27 included a single powerful president, a finance minister with authority to intervene in nation states and “a stronger European army in a militarised EU with a stronger and perhaps more aggressive foreign policy”.