In this highly original work, Catherine Wendy Bracewell reconstructs and analyzes the tumultuous history of the uskoks of Senj, the martial bands nominally under the control of the Habsburg Military Frontier in Croatia, who between the 1530s and the 1620s developed a community based on raiding the Ottoman hinterland, Venetian possessions in Dalmatia, and shipping on the Adriatic. Drawing on a broad range of sources, Bracewell provides the first comprehensive analysis of the uskoks as a social phenomenon, examining their origins, their military and social organization, their plunder economy, their mental world, and their relations with other groups in this borderland between three empires.