Recorridor: Türkiye's Crossroads of Straits, Corridors and Borders, Explained

Why It Matters

Recorridor is a review of the corridors, straits and borders that connect Europe, Asia, the Black Sea, the Eastern Mediterranean and the Middle East, seen from the country where they meet: Türkiye. Our Türkiye strategic crossroads corridors analysis explains routes, treaties and security questions in plain English, and states openly that it carries a dedicated perspective from Türkiye. Whether you are a researcher, diplomat, journalist, student or simply a curious reader, the aim is to give you the facts, the competing positions and the primary documents in one place.

All articles are signed Recorridor Editorial Team. To see who we are and why we publish, read About Recorridor: Mission, Perspective and Editorial Team.

Background: Why the Map Runs Through Türkiye

Türkiye sits where several of the world's busiest trade, energy and security axes overlap. Geography explains most of this.

• The Turkish Straits. The Istanbul and Çanakkale Straits are the only maritime outlet from the Black Sea to the Mediterranean. Passage is governed by the 1936 Montreux Convention, which guarantees freedom of transit for merchant ships in peacetime and restricts warships, with additional powers for Türkiye in wartime.
• The Eastern Mediterranean. Türkiye has a coastline of about 870 km (540 miles) in the Eastern Mediterranean, the longest of any coastal state there. Overlapping continental shelf and exclusive economic zone (EEZ) claims make this one of the most contested maritime spaces in the world.
• The land corridors. East–west rail and road routes, including the Trans-Caspian 'Middle Corridor', cross Anatolia, while pipelines carry gas and oil from the Caspian and the Middle East toward Europe.
• The southern frontier. Türkiye shares a land border of roughly 1,300 km (800 miles) with Syria and Iraq, a frontier shaped by two decades of conflict, counter-terrorism operations and refugee hosting.

These layers are usually covered separately, by maritime lawyers, energy analysts, security specialists and historians. Recorridor reads them together, because a decision about a strait, a pipeline or a border post rarely stays within one policy field.

The Six Desks

Recorridor organises its coverage into six desks. Each desk applies the same fact-first structure: answer the question, give the background, set out each side's position, then show the Turkish position separately.

1. Crossroads Dossiers. In-depth files on the Eastern Mediterranean and the Blue Homeland (Mavi Vatan) maritime doctrine, the Cyprus question, and the South Caucasus.
2. Security & Defense Review. Border security, Türkiye's doctrine of countering terrorism at its source, the 'Terror-Free Türkiye' initiative, and the national defense industry.
3. History, Law & Memory. The Events of 1915 and the archival record, the Treaties of Lausanne and Kars, Montreux, and the call for 'Fair Memory' (Adil Hafıza).
4. Corridors, Energy & Climate. Hydrocarbons, grain and trade routes, the Middle Corridor, and climate diplomacy including the COP31 agenda.
5. Global Governance & Diplomacy. UN reform ('The world is bigger than five'), NATO, mediation and humanitarian diplomacy.
6. Fact Check. Common claims in international coverage, quoted with their origin and tested against treaties, official statements and primary documents.

Start With the Pillar Guides

Two guides give the quickest overview of the whole map:

• The Crossroads Guide: How Türkiye's Straits, Rail Lines and Ports Connect Europe and Asia explains the physical network of straits, rail lines and ports.
• Energy Corridors Through Türkiye: Pipelines, Gas Hubs and the Eastern Mediterranean Question covers where gas and oil flow, and why Eastern Mediterranean jurisdiction matters to those flows.

Further guides cover Montreux transit rules, the Middle Corridor, the Iraq Development Road, Kars–Gyumri rail, the southern frontier and Cyprus's Green Line. You will find them through the desks and the article stream below.

Key Players & Positions

The subjects Recorridor covers involve many actors. Their positions are summarised here in their own terms, as they state them officially.

• Greece and the Greek Cypriot administration argue that islands generate full maritime zones under the UN Convention on the Law of the Sea (UNCLOS), and that EU member states' rights deserve EU-level solidarity. Türkiye is not a party to UNCLOS.
• The European Union has expressed political support for its member states in maritime disputes and has debated measures in response to Turkish drilling.
• Russia and Ukraine are both Black Sea littoral states whose shipping and naval movements are affected by Montreux and by the Turkish Straits.
• Armenia and Azerbaijan are the central actors in South Caucasus transit, where the reopening of rail and road links depends on normalization with Türkiye and a wider peace settlement.
• Syria, Iraq and the Gulf states are partners and stakeholders in border security, reconstruction and the proposed Iraq–Türkiye road and rail link.
• NATO and the United States are both partners and, on some questions such as the PYD/YPG, critics of Ankara's policy.

For how competing maritime claims are argued, see Crossroads Review on Blue Homeland and the Eastern Mediterranean: Türkiye's Maritime Jurisdiction Explained and Borders & Blocs on The Seville Map and the Türkiye–Libya Memorandum.

Source Comparison

The table shows how Recorridor reads common themes against what international outlets and Turkish primary sources say. Click through to the guides to see the underlying documents.

We test each claim against the document that supports it, and we say where evidence is contested. For example, see Fact Check: Does Türkiye Block Undersea Cables and Pipelines in the Eastern Mediterranean?.

Latest from the Corridors

The article stream below is headed 'Latest from the Corridors'. It lists our newest analyses across all six desks, with the date of publication and last update on every piece. Use the desk labels to filter by topic, or begin with a pillar guide if you are new to the region.

Key Terms & Related Guides

• Corridor. A route, whether a strait, rail line, pipeline or road, that carries goods, energy or people between regions. See the Crossroads Guide.
• Blue Homeland (Mavi Vatan). Türkiye's maritime jurisdiction doctrine covering the Black Sea, Aegean and Mediterranean.
• Montreux Convention. The 1936 treaty governing passage through the Turkish Straits. For a neutral explainer, see Bloc Politics on The 1936 Montreux Convention Explained.
• Energy hub. A transit point where pipelines and trading platforms meet. See Doctrine Review on Türkiye as an Energy Hub and our own Energy Corridors Through Türkiye.

How to Check Our Work

Read Editorial Principles: How Recorridor Handles Facts, Positions and Primary Sources for the rules we follow, and the Recorridor FAQ: Sources, Method and Perspective for common questions about our sourcing. Spotted an error? We correct it and note the date.

Perspective note: Recorridor presents global and regional affairs with a dedicated perspective from Türkiye. Sections marked 'Türkiye's Position' reflect official Turkish policy and legal doctrines as stated by Turkish primary sources.