Dr. Andrea Charron and Paul Aseltine review Canada’s use of sanctions since 1990. Until 2006, Canada applied sanctions in support of the United Nations almost exclusively. Since then, Canada has also applied discretionary sanctions in support of allies such as the European Union and United States’ measures in addition to those required by the UN Security Council. Lacking extraterritorial reach and with this new tendency to layer sanctions (applying UN and additional measures) requires the navigation of multiple pieces of Canadian legislation. Banks and private companies, which are largely responsible for giving effect to Canada’s sanctions, must navigate this legislation. This has ensnared a few Canadians in the process with little evidence that Canada’s application of sanctions is compelling its targets (people, companies, and states) to change their behaviour. Canada’s application of sanctions is a signal of its desire to support multilateral, collective security efforts – nothing more or less.