These states gained notoriety for the practices of their leaders and corsairs, who were involved in piracy and raided both European and Ottoman ships throughout the 16th, 17th, and 18th centuries. Barbary pirates captured ships, enslaved passengers and crew members, and engaged in lucrative ransom negotiations. They also received support and protection from the local rulers, making it a significant issue in Mediterranean geopolitics.
European nations were compelled to negotiate treaties with these states to guarantee the safety of their merchant vessels and citizens, frequently providing tribute payments or diplomatic concessions in return. The Barbary States ultimately came to an end in the 1830s, when France colonized Algeria, and subsequent military interventions by European powers led to the establishment of European hegemony in the region.