December 4-7, 2025
Fairmont Chicago Millennium Park
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The Patricia Leahy Fellowship for Educators
This prestigious fellowship honors exceptional Model UN faculty advisors with professional development support and a generous cash stipend. Named for Patricia Leahy, beloved Model UN Advisor at Hinsdale South High School, this program recognizes educators who demonstrate outstanding commitment to Model UN education.
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A Different Approach to Model UN
CIMUN delivers a simulation-based educational experience focused on realistic diplomatic scenarios. We prioritize national interest representation over idealistic consensus-building, challenging delegates to navigate complex international issues as real diplomats would.
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Mission
Founded in 2003, CIMUN has developed simulation-driven Model UN programs in Chicago and Mexico City. Our mission is straightforward: create realistic diplomatic simulations that develop critical thinking, strategic negotiation, and leadership skills in high school students.
Realism
CIMUN evaluates delegates on:
• Accurate representation of national positions
• Strategic advancement of national interests
• Effective negotiation within policy constraints
Unlike other conferences, we don't reward delegates for compromising core national interests simply to pass resolutions. Success at CIMUN requires understanding both your country's position and the international system's realities.
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Fully-Integrated Crisis Simulation
All CIMUN committees operate within a single, comprehensive simulation where:
• Actions in one committee affect all others in “running time,” a temporal construct only used at CIMUN
• Delegates from the same country must coordinate across committees
• Crisis developments require rapid adaptation and response
This integration spans General Assembly committees, specialized agencies, regional bodies, and national cabinets—creating one of the world's most comprehensive Model UN simulations.
Technology Integration
Key innovations at CIMUN include:
• CIMUN News Network: Live video broadcasts and articles that shape the simulation - see past CNN broadcasts on our Youtube Channel here
• SkyNet - Faculty Portal for self service delegation management and billing
• “Black” and “White” Position Papers
• Real-time crisis updates delivered to committees
These tools create a media-rich environment that reflects modern international relations and keeps delegates continuously engaged.
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Our Team
John Salchak
Secretary-General
Rose Jacobs
Deputy Secretary-General
Suhail Khan
Director-General
IDEA Board Chair
Darlene Moorman
Chief of Staff
Staff Opportunities
CIMUN recruits staff from diverse universities and professional backgrounds. Current openings include:
• Sergeant-at-Arms
• Committee Chairs and Dais Staff
• Simulations teams
• Operations and Conference Service
• Administration
University students and young professionals with Model UN experience are encouraged to apply.
It's your world. Fix it.
• Operating since 2003
• 1,000+ annual delegates
• 20+ committees per conference
• Historical and/or contemporary simulations
• Plated Banquet Opening Ceremonies
• Four-day immersive experience