Although, according to the UN Charter, the United Nations was established to "maintain international peace and security". it has often fallen short of this goal. Russia's ongoing military invasion of Ukraine and the more recent Israeli-Palestinian war in Gaza provide the latest examples of the world organization's frequent paralysis in the face of violent international conflict.
The hobbling of the Security Council, the UN agency tasked with enforcing international peace and security, bears the lion's share of the responsibility for this weakness. Under the rules set forth by the UN Charter, each permanent member of the Security Council has the power to veto Security Council resolutions. And these members have used the veto, thereby blocking UN action.
This built-in weakness was inherited from the UN's predecessor, the League of Nations. In that body, a unanimous vote by all member nations was required for League action. Such unanimity of course, proved nearly impossible to attain, and this fact largely explains the League's failure and eventual collapse.
The creators of the United Nations, aware of this problem when drafting the new organization's Charter in 1944-45, limited the number of nations that could veto Security Council resolutions to the five major military powers of the era--the United States, the Soviet Union, Britain, China, and France.
Other nations went along with this arrangement because these "great powers" insisted that, without this acceptance of their primacy, they would not support the establishment of the new world organization. The Charter's only restriction on their use of the veto was a provision that it could not be cast by a party to a dispute--a provision largely ignored after 1952. Fortifying the privileged position of these five permanent Security Council members, the Charter also provided that any change in their status required their approval.
In this fashion, the great powers of the era locked in the ability of any one of them to block a UN Security Council resolution that it opposed.
Not surprisingly, they availed themselves of this privilege. By May 2022, Russia (which took the seat previously held by the Soviet Union), had cast its veto in the Security Council on 121 occasions. The United States cast 82 vetoes, Britain 29, China 17, and France 16.
As the Council's paralysis became apparent, proponents of UN action gravitated toward the UN General Assembly. This UN entity expanded substantially after 1945 as newly-independent countries joined the United Nations. Moreover, no veto blocked passage of its resolutions. Therefore, the General Assembly could serve not only as a voice for the world's nations, but as an alternative source of power.
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