"If we don't defend the values of Europe today, we'll regret it," Gentiloni said.
The announcement came in the Senate as he addressed speakers of European parliaments ahead of the March 25 summit in the capital to celebrate the 60th anniversary of the Treaty of Rome, an agreement which sparked European integration.
The premier added that having a multi-speed EU must not be a source of division.
"Going forward [on integration] does not entail choosing to exclude someone," he said.
“Italy will not accept a choice between Europe of the east and Europe of the west, of a first-tier Europe or a second-tier one."
The upcoming summit in Rome will feature a document which is expected to be signed by 27 EU leaders, committing them to a new direction for the bloc following turbulent times.
With ANSA