"The current crisis makes it relentlessly clear that we cannot have a common currency zone without a common fiscal, economic and social policy," Schroeder said.
He added: "We will have to give up national sovereignty."
"From the European Commission, we should make a government which would be supervised by the European Parliament. And that means the United States of Europe."
"Great Britain causes the greatest problems. (It is) not in the euro but the British nevertheless always want to participate when it comes to designing a European economic area," he said. "That doesn't work."
To read another democracy-hating comment from a serving German politician - Schäuble