سید امین عسکری

American sanctions against Iran are one of the most extensive in terms of variety and extent . The most approved sanctions are unilateral against a country. While unilateral economic sanctions in an extraterritorial manner are considered a violation of the sovereignty of other countries in this regard.This research is done through analytical-descriptive methodGiri has studied the legal analysis of Iran's foreign investment embargo by the United States of America based on reliable research documents and international law jurisprudence. The findings of the research show that the restrictions caused by the unilateral US sanctions against Iran and the increase in investment costs can be considered as a serious obstacle to foreign investment in Iran. However, in 1991, the United Nations General Assembly strongly urged governments to end unilateral pressures. Also in the another one in 1996 called for the removal of such practices under the title "Elimination of economic pressure measures as a means of political and economic coercion".The American side in sanctioning Iran violates the principle of peaceful coexistence among governments, which requires respect for the political principles of international law, i.e. the legal equality of governments, non-interference, cooperation and friendship, respect for the independence and territorial integrity of governments among the members of the international community. This type of actions lacks legal and international validity due to the lack of legitimacy.