The peoples of Europe may soon "rise up in a nationalistic fervour" against the EU and plunge the continent into another war, a Tory MP has claimed.
Speaking during a parliamentary debate on Tuesday morning, Alec Shelbrook, said the "constant rush to federalisation has the exact opposite effect of what the European Union was set up for in the first place".
"The whole point of the European Union, which was laudable at the time, was to try to prevent another war in Europe," he said.
"But if you withdraw people's sovereignty, if you take that away from them, you are actually going to get them to strike back against that and eventually people in right-wing parties across Europe will get elected and say, 'Enough is enough', and they are going to rise up in a nationalistic fervour.
"For those who don't think such things could happen, we only have to look back 20 years to Yugoslavia and see how dangerous it can be when people don't feel they have control of their destiny."
Last week the president of the European Commission, Jose Manuel Barroso, said the union needed to become more integrated to survive the eurozone crisis.
"We will need to move towards a federation of nation states. This is our political horizon," he said.
Shelbrook, who is a ministerial aide to the Northern Ireland minister Mike Penning, was speaking after Tory Andrea Leadsom announced Conservative MPs plan to unveil a Christmas wish list of powers they want to seize back from Europe.
Fresh Start, a 12-strong group of Tories looking at changing Britain's relationship with the European Union, will reveal its catalogue in December as the continent struggles with the eurozone debt crisis.
Leadsom said: "By Christmas we will have produced a short and punchy manifesto for change which will be a shopping list of reforms across EU policy areas, including business, immigration, justice, agriculture, energy and many others."