Tens of thousands of people marched in Vicenza against the expansion of Caserma Ederle, which saw the participation of some leading far-left members of the government. Harsh debates followed in the Italian Senate on 20 February 2007. Deputy Prime Minister and Foreign Affairs Minister Massimo D'Alema declared during an official visit in Ibiza, Spain that, without a majority on foreign policy affairs, the government would resign. The following day, D'Alema gave a speech at the Senate representing the government, clarifying his foreign policy and asking the Senate to vote for or against it. In spite of the fear of many senators that Prodi's defeat would return Silvio Berlusconi to power, the Senate did not approve a motion backing Prodi's government foreign policy, two votes shy of the required majority of 160.