The UNGA adopts Resolution 1991,“Question of equitable representation on the Security Council and the Economic and Social Council,” which provides for the increase of non-permanent membership of UNSC from 6 to 10 states. The amendment came into force 31 August 1965.
Further decides that the ten non-permanent members of the Security Council shall be elected according to the following pattern:
- Five from African and Asian States;
- One from Eastern European States;
- Two from Latin American States;
- Two from Western European and other States.
The permanent 5 UNSC members remain unchanged.