Abu Dujana Al-Afghani , or Abu Nayaf al-Afghani was a claimed spokesperson for " Al-Qaeda of Europe " who demanded an end to Spanish support and involvement in the War on Terror . Abu Dujana claimed responsibility for the 2004 Madrid train bombings , as well as a failed train bombing the following month
2004 Madrid train bombings
2004 Madrid train bombings
Abu Dujana Al-Afghani