<Tr> <Td> <Ul> <Li> Responsible for the maintenance of international peace and security; </Li> <Li> May adopt compulsory resolutions; </Li> <Li> Has fifteen members: five permanent members with veto power and ten elected members . </Li> </Ul> </Td> <Td> <Ul> <Li> Responsible for co-operation between states as regards economic and social matters; </Li> <Li> Co-ordinates co-operation between the UN's numerous specialized agencies; </Li> <Li> Has 54 members, elected by the General Assembly to serve staggered three - year mandates . </Li> </Ul> </Td> <Td> <Ul> <Li> Was originally designed to manage colonial possessions that were former League of Nations mandates; </Li> <Li> Has been inactive since 1994, when Palau, the last trust territory, attained independence . </Li> </Ul> </Td> </Tr> <Ul> <Li> Responsible for the maintenance of international peace and security; </Li> <Li> May adopt compulsory resolutions; </Li> <Li> Has fifteen members: five permanent members with veto power and ten elected members . </Li> </Ul> <Li> Responsible for the maintenance of international peace and security; </Li> <Li> May adopt compulsory resolutions; </Li>

Which entity is a primary judicial arm of the united nations