Sept. 20: Militants kill at least 26 Shiites on a bus near the southern city of Quetta.
May 23: Pakistani commandos recapture a major naval base from Taliban attackers who struck to avenge the killing of Osama bin Laden in a US raid. Militants destroyed two US-supplied surveillance aircraft and killed at least 10 personnel.
May 13: A pair of Taliban suicide bombers attacks paramilitary police recruits in Shabqadar, killing 80, also in retaliation for bin Laden's killing.