حجت الله نوری

After the end of the Cold War between the Soviet Union and the United States and the collapse of the bipolar system, the British government, as a secondary power, sought to revise its foreign policy principles based on the necessities of the 21st century. Especially after the events of September 11, 2001, London officials reviewed the foundations of the country's foreign policy within the framework of a new international order centered on the United States. As a result of the new structure of British foreign policy, the political relations of this country with other international actors underwent changes, such that this issue also impacted the bilateral relations between London and Tehran. This research examines the foundations of British foreign policy as the main pillars of the country's foreign relations in the post-September 11 era. This article analyzes this topic using a descriptive-analytical method based on a foundational approach. The aim of this writing is to answer the main question: "What are the most important foundations of British foreign policy and what effects do they have on Britain's bilateral relations with the Islamic Republic of Iran?" The results of this research indicate that commercial diplomacy, energy security, US-British special relationship, the maintenance of the security and survival of the Zionist regime, and attention to human rights issues with specific perspectives are among the most important foundations and constructs of British foreign policy, each of which has in some way darkened and challenged relations between London and Tehran.