192 sovereign nations 5 permanent members : USA, China, France, Russia, & UK and 10 more nations elected 2 years term. 54 for 3 year terms.
Currently, the United Nations has 192 member states, encompassing almost every recognized independent state. See related links for a list of UN member nations.
As of 2008, there were 192 nations which were represented in the United Nations.
to promote world peace, security and cooperation among member states
The Chairman of the UN is the Secretary General.