Eurosceptics from across the continent signed a declaration in Stockholm on Friday promising to uphold national sovereignty, protect traditional cultural values, and tackle radical Islam.

Delegates representing parties such as UKIP, the Sweden Democrats and political blocs from various other European nations signed the ‘Stockholm Declaration’, pledging to support democracy, control national borders and keep taxes low.

The declaration was organised by the Alliance for Direct Democracy in Europe (ADDE), a centre-right grouping in the European Parliament of which UKIP is the biggest member.

Signatories made five pledges, including “consulting [the people of Europe] on matters involving our future as a citizen of a free and sovereign nation State”, as well as “protecting our cultural values and national traditions”.

They also said they were “committed to reducing the burden of excessive tax rates and preserving and our purchasing power and protecting our savings.”

The declaration also included a further two points specifically dealing with controlling immigration and “defeating radical Islam whenever it threatens our very civilisation”.

Signing the declaration on behalf of UKIP, interim leader Nigel Farage said how Britain had defeated its own political class to bring about Brexit.

“I think it is ridiculous to try and pigeon-hole Euroscepticism as being something that is necessarily on the right of politics,” he said.

“Believing in national democracy, believing in being in charge of your own life isn’t about left and right, it is about right or wrong.”

The event generated a considerable amount of controversy in the Swedish media, who have labelled pro-sovereignty event “far right”, leading to political activists bombarding the Grand Hotel – who were hosting the declaration – on social media.

Mainstream media across Europe joined in the outrage, with the Scotsman going as far as labelling some parties in attendance “neo-fascist” – but without specifying which ones.

Sweden’s Aftonbladet even tried to smear the event as “racist” because Rudolph Hess stayed in the same hotel 81 years ago.

The declaration comes just days after Britain’s High Court blocked the UK government from invoking Article 50 without the consent of Parliament, which leans heavily towards Remain.

Nigel Farage warned that Britain could be heading for a “half Brexit” and said if the UK had not left the EU by spring 2019 he would resume “full-time campaigning”.

“I think we could be at the beginning, with this ruling, of a process where there is a deliberate, willful attempt by our political class to betray 17.4 million voters,” he said.