ISA has more than 7,000 members in over 100 countries and describes itself as "one of the oldest interdisciplinary associations dedicated to understanding international, transnational and global affairs."[4] ISA encompasses six geographic subdivisions (regions), 29 thematic groups (sections), and four caucuses, providing opportunities to exchange ideas and research with local colleagues and within specific subject areas.[5] ISA's annual convention routinely draws over 6,000 attendees.[6]