- December 14, 1999 - Ahmed Ressam, known as the Millennium Bomber, was arrested upon entering the United States by a ferry from Victoria, British Columbia. He was smuggling explosives in his car from Canada as part of a plot to bomb the Los Angeles International Airport (LAX) on New Year's Eve 1999, as part of the foiled 2000 millennium attack plots.
- 2006 - In the 2006 Ontario terrorism plot, Canadian counter-terrorism forces arrested 18 terrorists (dubbed the "Toronto 18") inspired by al-Qaeda. They were accused of planning to detonate truck bombs, to open fire in a crowded area, and to storm the Canadian Broadcasting Centre, the Canadian Parliament building, the Canadian Security Intelligence Service (CSIS) headquarters, and the parliamentary Peace Tower, to take hostages and to behead the Prime Minister and other leaders.
- August 2010 - Misbahuddin Ahmed of Ottawa was arrested (later convicted in July 2014) of knowingly facilitating a terrorist activity and participation in the activities of a terrorist group.[11][12]
- 2013 - Chiheb Esseghaier and Raed Jaser of Montreal and Toronto, respectively, charged as part of an alleged Al Qaeda plot to derail a New York to Toronto train on the Canadian side of the border. Alleged plot was not imminent.[citation needed] Canadian Muslims helped to foil the alleged plot.[13] The suspects said they were arrested based on their appearance.[14][15]
- October 20, 2014 – On October 20, 2014, two Canadian Forces members were hit by Martin Couture-Rouleau, a recent Muslim convert in what is known as the 2014 Saint-Jean-sur-Richelieu ramming attack. Warrant officer Patrice Vincent died of his injuries. Couture-Rouleau was eventually gunned down and killed.[16]
- October 22, 2014 - Michael Zehaf-Bibeau, a convert to Islam, fatally shot Corporal Nathan Cirillo, a Canadian soldier on ceremonial sentry duty at the Canadian National War Memorial in Ottawa, and then forced his way into Canada's parliament building, where he had a shootout with parliament security personnel. He was shot 31 times and died at the scene. Zehaf-Bibeau made a video prior to the attack in which he expressed his motives as being related "to Canada's foreign policy and in respect of his religious beliefs."[17][18]
- August 10, 2016 - Aaron Driver was killed in Strathroy, Ontario, in a confrontation with police after detonating an explosive in the back seat of a taxi. The confrontation followed a tip from the FBI that Driver had made a "martyrdom video" and was planning an attack on an urban area.[19]
- September 30, 2017 - 30-year-old Abdulahi Sharif drives into Edmonton police constable Mike Chernyk then stabs him near Commonwealth Stadium in Edmonton, Alberta, fleeing and later hitting four pedestrians with a rental truck during a police pursuit in the 2017 Edmonton attack.[20][21] Police are investigating the incident as an act of terrorism and confirmed the presence of an ISIS flag in the van that struck the police officer.[22][23] Sharif was confirmed by RCMP assistant commissioner Marlin Degrand as a Somali national known to the RCMP and Edmonton police as having past displayed signs of extremism.[24]
