SIPRI mourns the passing of Ambassador Jayantha Dhanapala, former Vice Chair of the SIPRI Governing Board and former United Nations Under-Secretary-General for Disarmament Affairs. Ambassador Dhanapala passed away at the age of 85. Dan Smith, SIPRI Director, said, ‘Jayantha was a monumental figure who has had a lasting impact on the field of non-proliferation and disarmament. He was a skilled diplomat with an astonishingly broad range of knowledge on disarmament affairs.’