Iran and the Caucasus Regional Corridors: Opportunities and Challenges

Extended Abstract

Introduction: Over the past three decades, the Caucasus region has transformed from a peripheral area under Russian influence into a central hub of geopolitical and geoeconomic competition in Eurasia. Positioned at the crossroads of East and West as well as North and South, the region plays a vital role in the network of global economic corridors, with multiple regional and extra-regional actors striving to shape its trade and energy routes to serve their own interests. The Islamic Republic of Iran, due to its location at the intersection of North – South and East – West axes, possesses significant potential to play a pivotal role in the transit of goods and energy. However, geopolitical developments following the Second Nagorno-Karabakh War, the Ukraine conflict, the emergence of new corridors such as the Middle Corridor and the Zangazur Project, alongside ongoing sanctions pressures, have placed Iran at a crossroads of geoeconomic opportunities and threats. The main research question of this study is: What is Iran’s position in the economic corridors of the Caucasus, and what opportunities and challenges does it face? The study hypothesizes that Iran’s geostrategic location alone does not automatically enhance its role within regional corridor networks; rather, only by transforming this position into a geoeconomic advantage—through the North–South Corridor and investment in transit infrastructure—can Iran secure an effective and sustainable role in the Caucasus corridor competition.

Methodology: This study adopts a qualitative approach, employing a descriptive-analytical method. Research data were collected through the review of library documents, official reports of international organizations, policy documents, academic research, and strategic analyses. Data analysis was conducted within a geoeconomic theoretical framework, meaning that Iran’s position in the Caucasus economic corridors is examined not solely from a geopolitical or security perspective, but based on the regional economic interactions. Within this framework, competing and complementary corridors (North–South, Middle, Zangazur, and Aras) are treated as units of analysis, and the geoeconomics implications of each for Iran’s position are evaluated comparatively and analytically. The SWOT method was employed to provide a clearer summary of the findings.

Findings: Iran benefits from a geostrategic position that lets it participate in multiple regional corridors, led by the International North–South Transport Corridor (INSTC), linking Iran with India, the Persian Gulf, Russia, and Europe. INSTC offers lower cost and shorter transit times versus traditional routes and could turn Iran into a major regional transit hub after key infrastructure like Rasht–Astara is completed. However, emerging routes such as the Middle Corridor and the Zangezur Corridor pose significant challenges. In response, Iran is reinforcing the Aras Corridor, expanding cooperation with Russia and India, and promoting alternative connectivity frameworks as part of a multi-corridor strategy to bolster geoeconomic relevance. The analysis of Iran’s relations with regional and extra-regional actors highlights a highly competitive environment where opportunities and threats are closely intertwined.

Conclusion: The study concludes that Iran’s position within the Caucasus economic corridors is shaped by the interplay of three core factors: regional geopolitical developments, the strategic competition among rival corridors, and Iran’s domestic capacity for infrastructural development and corridor diplomacy. While Iran possesses notable opportunities—such as convergence with the INSTC, complementarities with the Middle Corridor, and Russia’s growing reliance on alternative transit routes—it simultaneously faces serious challenges, including the Zangezur Project, Turkey’s expanding regional role, Israel’s presence in Azerbaijan, and persistent sanctions pressure. Securing Iran’s position within the emerging Eurasian order requires accelerating the completion of the North–South Corridor, further developing the Aras Corridor, strengthening proactive economic diplomacy, and enhancing cooperation with Russia, India, and Armenia.