International economic sanctions or trade embargoes imposed, administered or enforced from time to time by (a) the U.S. government, including those administered by the Office of Foreign Assets Control of the U.S. Department of the Treasury or the U.S. Department of State, (b) the Canadian Government, including but not limited to all regulations made under the United Nations Act, the Special Economic Measures Act and the Export and Import Permits Act, (c) the United Nations Security Council, the European Union or Her Majesty’s Treasury of the United Kingdom or (d) any other relevant sanctions authority .