German Chancellor Angela Merkel's Christian Democratic Union suffered a crushing defeat at the hands of anti-nuclear Green Party. The poll results come as a big blow for Merkel's party that ruled for half a century indicating that the country's political landscape has changed dramatically. The Green party is set to form the first government under its leadership in the southern state of Baden Wuerttemberg after winning 24.1 per cent of the votes, more than double the votes polled in the last elections in 2006.The CDU's debacle is seen by poll analysts as a rebuke by voters angry over the federal government's nuclear policy, especially its decision to extend the life span of the country's 17 nuclear reactors on an average by 12 years.