Later during the Japanese occupation of the Dutch East Indies , British Malaya and Borneo , the Japanese maintained a favourable relationship with the Sultans and other Malay leaders , this is partially composed to foster the trust of the Malay public that was generally loyal towards the sultan . Nonetheless , in a series of massacres known as Pontianak incidents , the Japanese assassinated virtually all of the West Kalimantan Malay sultans , including a large numbers of Malay intelligentsias after they have been falsely accused of planning an uprising and coup d'etat against the Japanese . It was believed that West Kalimantan took two generations to recover from the near-total collapse of the Malay ruling class in the territory
Pontianak incidents
Pontianak incidents
Malays (ethnic group)