The Academic Council on the United Nations System (ACUNS) will be holding its 24th annual meeting in Waterloo, Ontario from June 2-4, 2011. CIGI will host sessions on June 4. Sponsored by CIGI, the event theme is "Multiple Multilateralisms," and will feature a call for papers, keynote speakers, workshops and plenary sessions/roundtables. The discussions that occur during the 3 days will generate innovative ideas on the influence and role of the United Nations within an increasingly complex global system of various actors, norms, principles, and issues. Those who are interested in attending, or watching the June 4 sessions at CIGI via webcast, must register by visiting www.acuns.org.