North-Western Contingent order of battle ( NWPORBAT ; officially order of battle is known as " Tri-services framework ( TSW ) " ) is the comprehensive deposition and systematic structure of the unified Pakistan military forces in tackling down and controlling the insurgency in Western Pakistan . The deployments began in 2002 after the International Security Assistance Force invasion of Afghanistan in 2001 in a response to the deadly terrorist attacks in New York , United States
terrorist attacks
September 11 attacks
War in North-West Pakistan order of battle