Terrorism-related incidents encompass a broader spectrum of events than just those resulting in fatalities. These incidents include any premeditated act of violence or threat carried out by non-state actors motivated by political, religious, or ideological objectives designed to create fear and influence government policies or public behaviour. Such incidents range from bombings, armed assaults, and assassinations to hijackings, hostage situations, and suicide attacks. They also include unsuccessful attempts, property destruction without casualties, threats that trigger security responses, and discovered plots that are intercepted before execution. Security agencies typically categorise these events based on targeting patterns (civilian vs. government), tactics employed, scale of operation, and suspected perpetrator groups. The documentation of terrorism-related incidents serves multiple purposes: establishing threat patterns, allocating security resources, evaluating counterterrorism effectiveness, informing policy decisions, and understanding the evolution of terrorist methodologies. Unlike terrorism-related killings data, which measures outcome severity, incident counts provide insight into the frequency and persistence of terrorist activity regardless of their “success” from the perpetrators’ perspective. This distinction makes incident data particularly valuable for understanding terrorism as a tactical approach rather than just measuring its human toll.