While traveling to meet rebel leader Moise Tshombe during the conflict, Dag Hammarskjöld, often named as one of the UN's most effective Secretaries-General, died in a plane crash; months later he was posthumously awarded the Nobel Peace Prize.
While traveling to meet rebel leader Moise Tshombe during the conflict, Dag Hammarskjöld, often named as one of the UN's most effective Secretaries-General, died in a plane crash; months later he was posthumously awarded the Nobel Peace Prize.