Rethinking the Middle Corridor

The Middle Corridor is attracting ever-growing attention as part of a more diversified Eurasian connectivity architecture linking Central Asia, the South Caucasus, Türkiye, and Europe. Russia's invasion of Ukraine, disruptions in the Red Sea, rising economic security concerns, and the increasing emphasis on supply-chain resilience have accelerated interest in diversifying Eurasian connectivity. As governments increasingly balance efficiency with resilience, connectivity is no longer viewed solely as a commercial undertaking but as a strategic asset capable of reducing dependencies, strengthening economic security, and supporting broader geopolitical objectives. This shift is reflected in the EU's Global Gateway strategy, Critical Raw Materials Act, broader economic security agenda, and emerging connectivity initiatives such as the India–Middle East–Europe Economic Corridor (IMEC) and the Development Road linking the Persian Gulf to Türkiye.

The Middle Corridor’s significance for the EU, however, extends well beyond transport and logistics. Rather than approaching the route primarily as an infrastructure project, Brussels should view it as a strategic instrument that can simultaneously advance multiple policy objectives, including creating a more strategic and interest-based framework for cooperation with Türkiye.

The growing strategic importance of Central Asia and the South Caucasus reinforces the Middle Corridor's relevance. More broadly, the corridor reflects the emergence of diversification as a central principle of geo-economics. Rather than replacing existing trade routes, it forms part of a progressively interconnected network of thoroughfares that expands strategic options for Europe and other regional actors.

The Middle Corridor should therefore be assessed not by its ability to compete with maritime transport or replace existing Eurasian routes but by its contribution to a broader ecosystem of connectivity, diversification, and strategic resilience. As geopolitical competition increasingly shapes economic relations, the corridor’s value lies less in the volume of goods it carries than in the strategic options it creates for Europe and its wider neighborhood.

An Artery of Economic Security

The Middle Corridor has become a strategic platform where the geo-economic and geopolitical interests of multiple actors converge, although not always for the same reasons.

For the EU, the corridor supports several strategic priorities. It contributes to efforts aimed at strengthening economic security, diversifying supply chains, securing access to critical raw materials, supporting the objectives of the Global Gateway strategy, and deepening engagement with Central Asia and the South Caucasus. Those two regions hold strategic importance for Europe as its green and digital transitions require secure access to critical raw materials, rare earth elements, and strategic minerals. All are resources essential to batteries, renewable energy technologies, and advanced manufacturing. The corridor functions as a transport route and a critical link between Europe and resource-rich regions. 

Concerns that the Middle Corridor could become a conduit for Chinese exports should be viewed in a broader perspective. These exports will also reach European markets through maritime routes, rail networks, or alternative logistical channels. Connectivity itself neither determines nor prevents these flows. The challenge for Europe is not whether connectivity exists but reconciling openness with competitiveness, industrial resilience, and economic security. A passive approach would not reduce China's presence. It would instead leave the financing, governance, and standards of the corridor under increasing influence of other actors. Greater engagement, however—through infrastructure investment, regulatory cooperation, Global Gateway initiatives, and partnerships with countries along the route—would enable the EU to strengthen its own strategic interests while contributing to a more balanced and resilient connectivity architecture.

For Türkiye, the Middle Corridor forms part of the country’s broader vision of regional connectivity. Ankara increasingly seeks to establish itself as a logistics, manufacturing, energy, and connectivity hub at the intersection of Europe, the Black Sea, the South Caucasus, Central Asia, and the Middle East, while viewing the corridor and the Development Road as strategic responses to initiatives such as IMEC that could otherwise bypass its territory. Türkiye benefits further from a customs union with the EU, advanced transport infrastructure, and extensive regional networks.

For Central Asian and South Caucasus countries, connectivity is also more important than transit revenues. It offers opportunities to diversify external partnerships, attract investment, strengthen economic sovereignty, integrate into global value chains, and enhance geopolitical relevance. For China, the Middle Corridor provides additional flexibility and redundancy for Beijing's broader connectivity strategy. The route is unlikely to replace those used by the Belt and Road Initiative or maritime transport.

These differing perspectives help explain the corridor's potential and its complexity. The project will succeed not because all participants share identical objectives but because it accommodates multiple strategic interests.

Coming Together

The most important development regarding the Middle Corridor is that it is evolving beyond a transport route into the backbone of a wider connectivity ecosystem.

For Europe, this evolution is closely linked to the Black Sea’s growing strategic importance. Since Russia's invasion of Ukraine, the body of water has moved to the center of European strategic thinking. Questions of security, connectivity, energy infrastructure, grain exports, critical raw materials, and regional stability increasingly converge in the wider Black Sea region. The Middle Corridor contributes to linking the sea with the South Caucasus and Central Asia, helping to create a new strategic geography for Europe.

The corridor also has important implications for regional integration. Historically, unresolved conflicts and geopolitical rivalries have constrained economic cooperation in the South Caucasus. Yet ongoing normalization efforts between Armenia and Azerbaijan, and between Armenia and Türkiye, create opportunities for expanding regional connectivity. In this context, initiatives such as the Trump Route for International Peace and Prosperity should be viewed as complementary branches of wider connectivity. Additional east-west links would increase the density, flexibility, and resilience of regional transport networks while reducing bottlenecks and creating new opportunities for trade and investment.

The same logic applies to the Middle East. The Development Road project linking the Persian Gulf through Iraq and Türkiye to Europe should not be perceived as a competing initiative. It instead represents another layer in a broader connectivity architecture. The Development Road provides a north-south dimension that complements the east-west geography of the Middle Corridor at a time of tension with Iran and recurring concerns about the security of the Strait of Hormuz that highlight the vulnerability of key maritime routes.

These factors collectively suggest that a single dominant route will not define the future of Eurasian connectivity. It will instead be shaped by networks of interconnected corridors stretching across the Black Sea, the South Caucasus, Central Asia, Türkiye, and the Persian Gulf. The Middle Corridor will be a central pillar in this emerging, wider system despite structural, operational, environmental, and geopolitical constraints that limit its effectiveness.

Governance and Constraints

The Caspian Sea remains one of the corridor's principal bottlenecks, and limited ferry capacity, insufficient port infrastructure, rail interoperability challenges, and uneven customs procedures further reduce efficiency. Although geographically shorter than some northern alternatives, the corridor often remains operationally slow.

Addressing these challenges requires more than infrastructure investment. The corridor’s competitiveness depends on improvements in soft connectivity, including customs harmonization, digital logistics platforms, interoperable technical standards, and more effective governance. The EU can play an important role in this effort. Through its Global Gateway and other financial instruments, Brussels can support strategic infrastructure, promote regulatory convergence, facilitate customs digitalization, and encourage closer coordination among participating countries. The bloc's comparative advantage lies less in financing than in helping improve interoperability, governance, and long-term reliability.

Climate change adds another layer of complexity. Declining water levels in the Caspian Sea are already affecting maritime operations and threatening the viability of ports and shipping. At the same time, regional cooperation remains uneven, with coordination still largely driven by national priorities rather than a shared strategic vision. The EU could help address these governance gaps by supporting permanent coordination mechanisms, encouraging joint planning, and linking financial support to regional cooperation and common standards.

The corridor also remains exposed to broader geopolitical volatility. Instability in the South Caucasus, tensions with Iran, maritime insecurity, and wider great-power competition continue to affect the predictability of investments, while Russia retains influence in parts of the wider region.

Yet these challenges reinforce the corridor's underlying strategic logic. The Middle Corridor's value lies not in eliminating risk but in reducing dependence on any single route, geography, or actor. In an era of geopolitical fragmentation and recurring supply-chain disruptions, diversification has become a strategic objective in its own right.

EU–Türkiye Cooperation Through Connectivity

The Middle Corridor’s successful development requires closer cooperation among its key stakeholders, particularly the EU and Türkiye, and the route’s evolution offers an opportunity to recalibrate their bilateral relations around a shared geo-economic agenda. Political disagreements and a persistent lack of trust have constrained the relationship over the past decade, but the strategic environment is now considerably changed. As Europe prioritizes economic security, industrial competitiveness, and resilient supply chains, cooperation with Türkiye has become more important—not despite Ankara's growing regional role but because of it. Yet the institutional framework governing economic relations has not evolved at the same pace, creating a growing mismatch between deep economic interdependence and limited strategic cooperation.

The Middle Corridor provides a practical framework for narrowing this gap. It aligns with shared interests in supply-chain diversification, critical raw materials, energy security, and regional stability across the Black Sea, the South Caucasus, Central Asia, and the wider Middle East. More broadly, it provides a pathway for the EU and Türkiye to build a more pragmatic partnership based on complementary strengths: Brussels' regulatory and financial capacities, and Ankara's strategic geography, industrial base, and regional connectivity.

Cooperation of this kind requires more than shared interests. Connectivity, supply chains, and industrial partnerships create long-term strategic interdependence, and this cannot be sustained without a minimum level of political trust and predictability. The EU and Türkiye should therefore develop mechanisms to rebuild trust and improve the political climate for practical cooperation. Such mechanisms will not resolve all disagreements, but they can make long-term commitments more credible.

Policy Priorities

The Middle Corridor is unlikely to become the dominant Eurasian trade route, and its success should not be measured by its ability to replace maritime transport or alternative land corridors. Its strategic value lies in expanding Europe's connectivity options, reducing excessive dependence on individual routes and chokepoints, and strengthening the resilience of broader Eurasian supply chains.

The EU should see the project as part of a wider economic security and competitiveness agenda rather than solely as a transport initiative. This requires integrating corridor development with the objectives of the Global Gateway strategy, the Critical Raw Materials Act, and broader efforts aimed at strengthening resilient value chains and securing access to strategic resources. European engagement should focus on infrastructure financing and governance, customs modernization, digitalization, and regulatory harmonization.

To do this, the EU should deepen long-term partnerships with Türkiye, Central Asia, and the South Caucasus on connectivity, critical raw materials, energy cooperation, and industrial development. The corridor offers a practical framework through which these shared interests can be translated into mutually beneficial projects.

For countries along the route, priorities should include expanding Caspian Sea transport capacity, improving rail interoperability, harmonizing customs procedures, strengthening corridor governance, and promoting value-added economic activities beyond transit services.

In an evolving geopolitical landscape, the Middle Corridor's importance stems not from its size alone but from its contribution to a more diversified, resilient, and strategically connected Eurasian order.

The views expressed herein are those solely of the author(s). GMF as an institution does not take positions.

This policy paper is part of a series of events and analyses organized by the GMF–Union of Chambers and Commodity Exchanges of Türkiye (TOBB) Fellowship on Türkiye, Europe, and Global Issues. The fellowship was launched in 2017.