In 1985 Prabowo attended the Advanced Infantry Officers Course at Fort Benning, in the United States for commando training. In the early 1990s, as the commander of Kopassus Group 3, the now Major General Prabowo attempted to crush the East Timorese independence movement by using irregular troops (hooded "ninja" gangs dressed in black and operating at night) and, in main towns and villages, militias trained and directed by Kopassus commanders. Human rights abuses rose. The Army's 1997 campaign was called Operation Eradicate.