An important part of diplomacy takes place not in negotiations, but in the corridors. As a traditional informal meeting of NATO and UN Model participants, the Atrium Party simulates just such an informal meeting, again this year with more than a dozen professionals from the fields of international relations, defense, security and technology. Students had the opportunity to talk with, for example, First Deputy Minister of Foreign Affairs Jiří Kozák, journalist Petra Procházková, speaker of the Chamber of Deputies Martina Lustigová and General Miroslav Feix, director of the capability planning section of the Ministry of Defence of the Czech Republic. We organize the Atrium party in cooperation with the Association for International Affairs.