[1][failed verification] The international works together on points of agreement to co-ordinate activity.
After World War II, other ideological movements formed their political internationals to communicate among aligned parliamentarians and legislative candidates as well as to communicate with intergovernmental and supranational organizations such as the United Nations and later the European Union.
Internationals also form supranational and regional branches (e.g. a European branch or an African branch) and maintain fraternal or governing relationships with sector-specific wings (e.g. youth or women's wings).
[2] Internationals provide the parties an opportunity for sharing of experience.
[1] For example, during the 2011 Arab Spring the Socialist International expelled the governing parties of Tunisia and Egypt for performing actions incompatible with the values of this international.