Prime minister spurns US and EU to try to influence G20 in letter with Indonesia, Mexico, Australia, Canada and South Korea NEW YORK British diplomacy has been anchored in two alliances for the past 40 years: Europe and the United States. Does David Cameron now believe that British interests lie elsewhere? The prime minister has decided to join forces with leaders from outside the US and EU to try and influence the next meeting of the G20, to be chaired by Nicolas Sarkozy, in Cannes in November.