 The U.S. Government said these security improvements complemented a package of assistance from the US AID for the seven districts of the tribal areas that amounted to $750 million over five years, and would involve work in education, health and other sectors.The BINLEA of the US Government also assisted the Frontier Corps with financing for counter-narcotics work.In 2008, the al-Qaeda struck its largest terrorist attack in Islamabad when a truck bomb targeted the Marriott Hotel.