Some times Veto power is working as a barrier and also helpful to world peace.
How it is a barrier:
- Often the great powers themselves involved in many of the conflicts used their Veto power to block any action by the U.N.O.
- Sometimes they have also used their power to force the UN to bend to their dictates.
How it is helping :
The special powers also have given the great powers a special role and responsibility in preserving world peace.
U.N.O created pressure on Russia and the USA to the reducing of nuclear weapons.
U.N.O helped to defuse Cuban missile crisis.
However, the very existence of a forum like UN, has forced great powers to exercise moderation and self-control.