After the independence of Indonesia from Dutch colonial rule in 1945, the Dutch fought a violent war to stop the decolonisation of Indonesia. When the Dutch government in 1949 acknowledged the independence, many people from Indonesia went to the Netherlands.
Among the Indonesians, the Moluccans, who were in a special position, went to the Netherlands. The Moluccans are the Austronesian-speaking and Papuan-speaking ethnic groups indigenous to the Maluku Islands. For ages Moluccans had been recruited in the Dutch colonial army. They were considered good soldiers and very loyal to Dutch authority.
After the war of independence, the Moluccans found themselves in an awkward, uncomfortable, situation and the Moluccans declared themselves independent from Indonesia.