The document provides an overview of Pak-US relations and the effects of the Russian-Afghan war on Pakistan. It discusses how Pakistan allied with the US due to shared anti-communist goals. Pakistan faced costs for this alliance like refugee crises, drugs/weapons trafficking, and sectarian violence. The US provided billions in aid but also cut off support at times. Ultimately, the Russian withdrawal from Afghanistan in 1988 was a major world event but left civil war in Afghanistan and ongoing issues for Pakistan.