US intelligence and phone calls intercepted by the Bosnian government show communication between Al-Qaeda commanders and Bosnian mujahideen . Several of the mujahideen were connected to Al-Qaeda . Osama Bin Laden sent resources to the Bosnian mujahideen . Two of the five 9/11 hijackers , childhood friends Khalid al-Mihdhar and Nawaf al-Hazmi , had been Bosnian mujahideen . Nasser bin Ali al-Ansi , a senior leader of the Al-Qaeda in the Arabian Peninsula , had fought in Bosnia in 1995 . Bosnian Salafi leader and mujahideen veteran Bilal Bosnić was in 2015 sentenced to seven years in prison for public incitement to terrorist activities , recruitment of terrorists and organization of a terrorist group
hijackers
American Airlines Flight 77
Bosnian mujahideen