All member statesrepresented. Annual session begins in September.
Permanent members can veto action on substantiveissues.
Security Council acts after complaint by member ornotification by General Assembly or Secretary General, or on ownvolition. Headed bySecretary General, who customarily serves five years. Authorizedto bring situations to attention of various UN organs. Impartialparty in effecting conciliation. Empowered to perform functionsentrusted by other UN organs.