Myanmar’s armed forces used armed Pilatus PC-7s and PC-9s against insurgents and civilians. The aircraft had been exported as trainers. Contemporary reports also describe Swiss technicians attending firing tests with modified aircraft and further spare-parts deliveries. In 1992, WOZ reported an attack on the Karen that killed around twenty people. In March 1996, Human Rights Watch received reports of four further attacks using PC-7s and PC-9s between 9 and 11 March. According to observations published at the time from the Thai side of the border, more than thirty bombs were dropped and twenty rockets fired.