Former US President Harry S Truman (left) signing the Charter of the United Nations, watched by Secretary of State James F Byrnes, 8 August 1945. Getty Images
Former US President Harry S Truman (left) signing the Charter of the United Nations, watched by Secretary of State James F Byrnes, 8 August 1945. Getty Images

On the 75th anniversary of the UN, multilateralism is the way forward