After the April Revolution of 1978. In Afghanistan and the invasions of the Soviet troops, relations between the two countries were practically frozen, although diplomatic relations were not interrupted. Iran accepted the largest number of Afghan refugees after Pakistan (more than 1.5 million. people.), provided military and other assistance to the mujahideen. Iran, among the first, recognized the authorities in Afghanistan in April 1992. Mujahidean Government and actively support him in the opposition of the Taliban movement.