Wiktionary
n. measure intended to combat or reduce terrorist activities.
Wikipedia
Counter-terrorism (also spelled counterterrorism) (also called anti-terrorism) incorporates the practice, military tactics, techniques, and strategy that government, military, law enforcement, business, and intelligence agencies use to combat or prevent terrorism.
If terrorism is part of a broader insurgency, counter-terrorism may employ counter-insurgency measures. The United States Armed Forces use the term foreign internal defense for programs that support other countries in attempts to suppress insurgency, lawlessness, or subversion or to reduce the conditions under which these threats to security may develop.
Usage examples of "counter-terrorism".
The final member of the team was an ammunitions technical officer, a bomb disposal expert on attachment to the counter-terrorism team.
Formerly of the FBI's Hostage Rescue Teams: and an expert on counter-terrorism, president of an international security-consulting company now headed oft Australia to seek a consulting contract for the next Olympics .
The devil of it is, Willy, there are so many possibilities - so many combinations of terrorism and counter-terrorism.
Strassmeir's attorney, Kirk Lyons, detailed his client's escape, stating that it was aided by Germany's vaunted counter-terrorism unit, GSG-9, the equivalent of our Delta Force.