The UCCA is a founding member of the Ukrainian World Congress (UWC), the international assembly of nearly all Ukrainian public organizations in the worldwide Ukrainian diaspora of over 20 million people. In the United States, the UCCA is a member organization of the Central and East European Coalition (CEEC), which coordinates the efforts of national ethnic organizations representing 20 million Americans, whose members continue to maintain strong cultural, economic, political, and religious ties to the countries of Central and East Europe.