IBDA-C was founded in 1970 by Salih İzzet Erdiş, aka Salih Mirzabeyoglu. The group moved from rhetoric to violence in the 1990s, culminating in a series of 90 bombings and attacks in 1994.
After Erdiş's arrest and subsequent conviction on December 29, 1998, followed by the detention of many lower-ranking figures in the group, IBDA-C's activity seemed to quiet down. However, IBDA-C burst back into the headlines when it claimed responsibility for the dual synagogue bombing in Istanbul on November 15, 2003, which killed 24 and injured 255, as well as a subsequent attack on the HSBC Bank and British consulate on November 20, 2003. The second claim called the bombings a joint attack with Al Qaeda; the authenticity of the claim is disputed.
On November 29 police in Istanbul announced the arrest of a yet-unnamed man they stated had admitted to giving the order to suicide bombers to attack Beth Israel synagogue on November 15.
See also: List of terrorist groups