observer - (1) Singapore
——-
Australia—New Zealand—United States Security Treaty (ANZUS)
established - 1 September 1951
effective - 29 April 1952
aim - to implement a trilateral mutual security agreement, although the US suspended security obligations to NZ on 11 August 1986
members - (3) Australia, NZ, US
——-
Banco Centroamericano de Integracion Economico (BCIE)
see Central American Bank for Economic Integration (BCIE)