 Moreover, many Mandailing people are Minangkabau descent from Pagaruyung in Minangkabau highlands, such as Nasution clan.Dutch colonization in Sumatra caused the Mandailing to be typecast as a sub-category of the Batak, as a 'wedge policy' to classify the communities and create typologies.It instilled the division of the Islamic nations by a non-Muslim belt, called 'Bataklanden' (Bataklands).