Correspondence and documents relating to the North-South Summit in Cancun, Mexico in 1981. Also includes copies of Hansard volume 9, numbers 149 and 150, Callaghan's March 1981 lecture in Delhi Our Independent World, Willy Brandt's 1980 26th Fowley Foundation lecture The future of Europe in the world of change, leaflets regarding the Brandt Report, and correspondence with and regarding United World colleges.