The turn toward strategic competition, due to the increase in conflict outside the bounds of conventional war, has also pivoted security researchers and practitioners toward the idea of irregular warfare (IW). Though IW has been practiced and written on for centuries, the term is not conceptualized in similar fashion across the world—or even across the organizations constituting the U.S. government. Though a globally uniform idea of IW is not likely, and perhaps not even desirable, due to regional and historical differences in conflict experience, it is still critical for the Department of Defense (DoD) to understand how allies and partners conceptualize IW in order to engage them effectively. The Irregular Warfare Center (IWC) has worked to fill this gap with a series of regionally focused studies and follow-on workshops on the conceptualization of IW. The first study in the series focused on the European conceptualization of IW through engaging with PME institutions in the region. The second study followed the same methodology but turned to the Indo-Pacific region. The results of the second study show that, like Europe, countries in the Indo-Pacific conceptualize IW differently, requiring a nuanced understanding of these regional conceptualizations to engage partners and allies in the region effectively.