The movement had a small number of followers initially, and di Tiro himself had to live in exile in Sweden. Meanwhile, the province followed Suharto's policy of economic development and industrialization. During the late 1980s several security incidents prompted the Indonesian central government to take repressive measures and to send troops to Aceh. Human rights abuse was rampant for the next decade, resulting in many grievances on the part of the Acehnese toward the Indonesian central government. In 1990, the Indonesian government initiated military operations against GAM by deploying more than 12,000 Indonesian troops in the region.