sentences:  The BSO remained the leading student organisation in Balochistan's campuses, protesting against the Zia ul Haq's dictatorship.It also denounced the Islamist Afghan resistance against the Soviet troops backed by the United States and Saudi Arabia.In 1981, it joined the United Students Movement, an alliance of left-wing ethno-nationalist student groups opposing the Zia regime and the Islami Jamiat-e-Talaba.