This document discusses Pakistan-Afghanistan relations from 1947 to 1992 over 4 phases:
Phase 1 (1947-1963) saw tensions over the Durand Line and Afghanistan's opposition to Pakistan joining the UN. Phase 2 (1963-1973) saw improved relations as Afghanistan supported Pakistan in its wars against India. Phase 3 (1973-1978) was marked by regime changes in Afghanistan and the rise of communist influence. Phase 4 (1979-1992) was defined by the Soviet invasion of Afghanistan, US assistance to Pakistan and mujahideen, and eventual Geneva peace accord.