<Tr> <Td> </Td> <Td> Trygve Lie </Td> <Td> Norway </Td> <Td> 2 February 1946 </Td> <Td> 10 November 1952 </Td> <Td> Resigned </Td> </Tr> <Tr> <Td> </Td> <Td> Dag Hammarskjöld </Td> <Td> Sweden </Td> <Td> 10 April 1953 </Td> <Td> 18 September 1961 </Td> <Td> Died in office </Td> </Tr> <Tr> <Td> </Td> <Td> U Thant </Td> <Td> Burma </Td> <Td> 30 November 1961 </Td> <Td> 31 December 1971 </Td> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td> Kurt Waldheim </Td> <Td> Austria </Td> <Td> 1 January 1972 </Td> <Td> 31 December 1981 </Td> <Td> </Td> </Tr>

Five agencies of the un and their functions