This paper follows the almost contemporaneous emergence of the two primary antiwar initiatives in Belgrade and Zagreb to explore how they acted as hotbeds from which permanent human rights organizations appeared in the newly created nation-states. Drawing mostly upon in-depth interviews with antiwar activists from Serbia and Croatia, I argue that the dominant patterns of protest expansion were different in the two countries. While cooperation and tensions existed within both antiwar groups, the Antiwar Campaign of Croatia acted as a broker, leading toward the multiplication of civic initiatives; on the other hand, the Belgrade Center for Antiwar Action was characterized by ideological, professional, and personal divisions, which caused a rapid fragmentation of antiwar undertakings. This paper outlines the main reasons for such expansion patterns (scale-shift processes) and discusses them in the light of recent theoretical advances in political contention studies.
