This essay examines the impact of the Atlantic slave trade on stateless societies, focusing on Balanta populations of present-day Guinea-Bissau. It demonstrates that some decentralized groups located on the ‘slaving frontiers’ of states managed not only to survive but also to thrive. In so doing, it shows how Balanta changed their settlement patterns and crop production techniques in response to threats posed by the slave raiding armies of Kaabu. From the mid-seventeenth century, Balanta produced and traded large quantities of paddy rice by organizing workers into age grades.