lndonesia possesses a large number of fortification-work as legacies of both native rulers and those structures which were built by European. Fortification structures are not only about the legacy of architecture building. They arean integral part of the history of the Indonesia as a nation state and Its culture. Many fortification structures were built for defense systems and as symbols of power. Thus, they reflect the dynamic interaction among kingdoms within the archipelago as welI as kingdoms within the region, and between Europeans and the native political forces.