The Great East Islamic Raiders' Association (GEIRA) is a historical group known for its activities during the late 19th and early 20th centuries. This organization was primarily involved in maritime piracy and raiding along the coasts of Southeast Asia, targeting trade routes and merchant vessels. Their actions were often motivated by a combination of economic gain and religious fervor. GEIRA operated in a region marked by political instability and colonial interests, which allowed them to thrive. The association is often studied in the context of Islamic history and piracy, highlighting the complex interactions between local cultures and colonial powers during this period.