Nigel Farage warned a European army would be “very dangerous” and “deeply insulting” to the United States.

Speaking on his LBC  radio show, Mr Farage blasted: “A true European army says Emmanuel Macron, backing up comments from Commission President Jean-Claude Juncker, who said not too long ago, deference to NATO can no longer be used as a convenient alibi to argue against greater European efforts.

“Folks, they’re building a European army, they’re not messing about.

“Isn’t it funny some Remoaners complained Boris put some numbers on a side of a bus and somehow, that was a terrible lie.

“Do you know something, they’ve been lying to us for 50 years about the true intentions of the European Union.”

He later added: “These people really worry me.

“I think a European army is very very dangerous. What an insult, and what a worry this is for those that believe in co-operation with America and others in NATO.”

Earlier today Mr Macron said Europe needed to build a real army to become less reliant on the United States, in the face of a resurgent Russia.

The French President said: ”We won’t protect Europeans if we don’t decide to have a real European army.

“Faced with Russia, which is near our borders and has shown it could be threatening.

“I want to build a real security dialogue with Russia, which is a country I respect, a European country – but we must have a Europe that can defend itself on its own without relying only on the United States.”

Asked about Mr Macron’s remark and whether the Commission supported the creation of a “European army”, European Commission chief spokesman Margaritis Schinas noted a new EU project to collaborate on defence procurement and research as well as new EU military peacekeeping missions beyond Europe’s borders.

He told reporters at a regular briefing: “This is the Commission that put forward lots of initiatives and proposals to start building gradually a more meaningful and assertive defence identity in these difficult geopolitical times.”

Mr Schinas added: “I don’t think that this defence identity will start with an EU army.

“We’ll see that at some point in time, probably down at the end of this process.

“We may see something that people already describe as an EU army or an EU pooling of resources to make this EU defence identity more visible and more meaningful.”