Welcome to the Princeton Diplomatic Invitational

In 2018, the International Relations Council launched the inaugural session of the Princeton Diplomatic Invitational (PDI), the successor to Princeton Interactive Crisis Simulation (PICSim). We are excited to announce the second iteration of PDI will take place in 2019 between March 1st and 3rd.

True to its roots, PDI will continue to offer an innovative, fast-paced, and dynamic crisis experience. This year, PDI will feature two joint-crisis committee (JCC) universes, an ad-hoc, and a marathon—a 24-hour, one-session committee that will challenge delegates to resolve an intractable issue before the clock runs out.

Background Guides

Now available.


Interested in attending PDI? Click here.

Fees & Logistics

Planning for PDI.


Now available.

Executive Team

Meet the members of this year's Executive Team.


Register here.



Committee sessions, socials, and more!