Abstract
International organisations have formed the foundation of the global multilateral order since the end of World War II. In recent years, however, they have become the target of increasing criticism from populist politicians who are trying to demolish the foundations of the liberal international order. The aim of this academic essay is to contribute to the rapidly growing research on populist disengagement from the liberal international order by comparing the behaviour of Javier Milei and Nayib Bukele towards international organisations. The selection of these two particular populists fills a gap in the contemporary literature, which is mainly devoted to more straightforward right-wing populists, such as Viktor Orbán, or straightforward left-wing populists, like Hugo Chávez. The essay demonstrates that the approach of these two populist politicians toward international organisations differs drastically. Javier Milei is a clear example of an outsider populist with a radical stance toward the liberal international order. Nayib Bukele, on the other hand, represents a more pragmatic approach.