Lal Masjid siege (July 2007)
Pakistani special forces stormed the Lal Masjid (Red Mosque) compound in Islamabad, killing at least 100 militants after a week-long siege. The assault is widely credited with catalyzing the TTP's insurgency against the state.
A wave of suicide attacks swept Pakistan in the months after the raid.
The TTP formally coalesced from tribal militant groups united in opposition to the operation, becoming the state's chief armed enemy.
Places today's TTP attacks as the latest chapter in a nearly two-decade conflict that began with a single government raid.
