The Center for Anarchist Studies (CAS) was a Croatian anarchist non-profit organization founded on 14 April 2009 with the goal of studying and promoting anarchism with emphasis on anarcho-syndicalism. It described freedom, equality, autonomy, cooperation, solidarity, anti-authoritarianism and anti-hierachy as it's core values and itself as opposed to nationalism, clericalism, militarism, discrimination and oppresion. The organization had no central leadesrhip, instead being run by an assembly consisting of all of it's members with work ability. The organization was opposed to obligatory military service proposed in 2024 and supported September 2025 protest againts mandatory military service with it's representative appearing as one of the speakers.