ANTI-WAR campaigners hit back today at Lib Dem leader Sir Ed Davey’s calls for Britain to build its own nuclear deterrent, warning his plans were “a disaster” that would provoke further wars.Peace activists slammed the proposals saying the hundreds of billions needed to build such an arsenal would mean deep cuts to public services and would “drive up poverty and social deprivation.”Sir Ed’s comments come amid renewed scrutiny over the so-called special relationship with the US as Britain risks being dragged further into the war in the Middle East.