Jemaah Islamiyah has been designated a terrorist group by the following countries and international organizations : Prior to the first Bali bombing on 12 October 2002 , there was underestimation to the threat Jemaah Islamiah posed . After this attack , the U.S. State Department designated Jemaah Islamiah as a Foreign Terrorist Organization
Bali bombing
2002 Bali bombings
Jemaah Islamiyah