Dag Hammarskjöld
The Dag Hammarskjöld Medal is a posthumous award given by the United Nations (UN) to military personnel, police, or civilians who lose their lives while serving in a United Nations peacekeeping operation. The medal is named after Dag Hammarskjöld, the second Secretary-General of the United Nations, who died in a plane crash in what is now Zambia in September 1961.