International organisation

An international organization is an organization with an international membership, scope, or presence. There are two main types:

The first and oldest intergovernmental organization is the Central Commission for Navigation on the Rhine, created in 1815 by the Congress of Vienna.

The role of international organizations are helping to set the international agenda, mediating political bargaining, providing place for political initiatives and acting as catalysts for coalition- formation. International organizations also define the salient issues and decide which issues can be grouped together, thus help governmental priority determination or other governmental arrangements.

...
Wikipedia