 Complete the following phrase:  During his tenure as leader of Afghanistan, the Soviets began their withdrawal, and from 1989 until 1992, his government tried to solve the ongoing civil war without Soviet troops on the ground. While direct Soviet assistance ended with the withdrawal, the Soviet Union still supported Najibullah with economic and military aid, while Pakistan and the United States continued their support for the mujahideens. Throughout his tenure, he tried to build support for his government via the National Reconciliation reforms by distancing from socialism in favor of Afghan nationalism, abolishing the one-party state and letting non-communists join the government. He remained open to dialogue with the mujahideen and other groups, made Islam an official religion, and invited exiled businessmen back to re-take their properties. In the 1990 constitution, all references to communism were removed and Islam became the state religion. For various reasons, such changes did not win Najibullah any significant support. Following the 