There are also significant ethnic, linguistic, and religious diversity within Indonesia. This diversity can lead to social and political tensions. In addition, Indonesia has a history of separatist movements, some of which have been violent. These factors all contribute to the perception of Indonesia as a fragmented state.
However, it is important to note that despite these challenges, Indonesia has managed to maintain its unity as a nation. This is due in part to the country's strong sense of national identity and the efforts of the Indonesian government to promote unity and cohesion.