P205 CEEFAX 205 Mon 13 Oct 21:14/45       Britain is backing President Reagan's stance at the Iceland summit, Foreign Office minister Mr Tim Kenton has said. Speaking in Brussels, Mr Kenton said Britain was fully behind Mr Reagan's insistence on the right to go ahead with "Star Wars" research efforts. Defence Secretary Mr George Younger has said President Reagan was "absolutely right" not to accept a one-sided deal. Mrs Thatcher is to meet chief Soviet arms negotiator Mr Viktor Karpov in London tomorrow. A Government statement will bj made in the Lords on Wednesday. News index 102/202 Newsreel 119/219