Having tasted victory in Afghanistan , many of the thousands of fighters returned to their home country such as Egypt , Algeria , Kashmir or to places like Bosnia to continue jihad . Not all the former fighters agreed with Azzam 's chioice of targets ( Azzam was assassinated in November 1989 ) but former Afghan fighters led or participated in serious insurgencies in Egypt , Algeria , Kashmir , Somalia in the 1990s and later creating a " transnational jihadist stream . " In February 1998 , Osama bin Laden put a " Declaration of the World Islamic Front for Jihad against the Jews and the Crusaders " in the '' Al-Quds al-Arabi '' newspaper . On 11 September 2001 , four passenger planes were hijacked in the United States and crashed , destroying the World Trade Center and damaging the Pentagon
crashed
September 11 attacks
Jihad