On 27 March 1967, in the House of Lords, Chalfont became the spokesman/figurehead for Harold Wilson's Labour Party Government's attempt to divest Britain of the Falkland Islands. In November 1968 Chalfont travelled to the Falklands to canvas the people, and try to persuade them of the merit of becoming Argentine citizens. He was sent away in no doubt that the islanders wished to remain British, but, on his return to Britain, he reported, "I do not believe that the Falkland Islands can continue to exist for many years, as they are presently constituted. I believe one day that the Falkland Islands may be prepared to choose Argentine sovereignty. We must at all costs avoid giving the impression that we want to get rid of them, since that would set up precisely the reaction we would want to avoid."