There is a map that used to hang in the offices of Soviet central planners in Moscow, showing the five republics of Central Asia as a single administrative unit — roads pointing inward toward Russia, railways terminating at Russian junctions, pipelines flowing north. The region was designed, quite deliberately, to face one direction.

That map is obsolete. The new one shows arrows pointing everywhere.

Goods move by rail from Chengdu to Rotterdam through Kazakhstan and Azerbaijan. Natural gas contracts are being negotiated between Ashgabat and Brussels. Hydropower from Kyrgyzstan's mountains is powering Uzbek factories. And the leaders of seven nations — stretching from the Caspian to the borders of China — are signing cooperation agreements under a flag that bears a crescent and twelve stars: the emblem of the Organisation of Turkic States, an institution that barely existed a decade ago and is now one of the most geopolitically consequential clubs nobody in the West is talking about.

Central Asia is back. Not as a client zone for external powers as in the days of the Great game, not as a buffer between empires, but as something it has not been since the caravans of the Silk Road made Samarkand and Bukhara among the wealthiest cities on Earth: a region that matters on its own terms.

From rivals to a bloc: the making of the C5

The five former Soviet republics of Central Asia — Kazakhstan, Uzbekistan, Tajikistan, Kyrgyzstan and Turkmenistan — spent the first decade after the Soviet Union's collapse largely as rivals, competing for foreign investment, trade routes and political recognition. Each pursued its own bilateral relationships with Moscow, Beijing and Washington. The idea of collective action was, at best, aspirational.

The shift began gradually, accelerating as the great power rivalry between East and West intensified. Individually, the countries had limited leverage — Kazakhstan was an oil state of note, Uzbekistan a regional demographic giant, the others relatively minor players in global markets. But together, as analysts began to observe, they formed something considerably more significant: an important transit hub between Europe and Asia, a combined consumer market of tens of millions, a resource base of genuine consequence, and a strategic security zone sitting between Russia, China, Iran and Afghanistan.

"For decades, the region was viewed mainly as a space where the interests of external powers — including Russia, China, the US, and others — intersected," as Timur Serikuly, editor-in-chief of the Open World Center for Analysis and Forecasting in Astana, put it in a recent op-ed. "Today, that paradigm is beginning to shift. Central Asia is showing greater signs of agency through what may be described as a cluster effect: individually, the countries have limited influence, but collectively they form an important transit hub between Europe and Asia, a growing market, a significant resource base, and a strategic security zone."

The catalyst for formalising this cluster instinct was, in large part, political necessity. As Russia's war in Ukraine deepened the fault lines of global geopolitics, the five states came under sustained pressure from both sides to choose. They refused. All five adopted strict neutrality — a position that required, almost paradoxically, greater collective coordination to sustain. It is easier to resist the gravity of a great power when five countries are doing it together than when each is standing alone.

The C5, as the grouping came to be known — the five Stans acting as a diplomatic unit — is the institutional expression of that calculation.

Enter Azerbaijan: the C6 takes shape

Now a new phase is unfolding. Azerbaijan — geographically a South Caucasus state, not a Central Asian one — is pulling into closer orbit with the C5, creating what analysts are beginning to call the C6 configuration. The logic is less ideological than infrastructural: Azerbaijan is, quite simply, the door through which Central Asia connects to Europe.

The most immediate driver is transport. All commercial air traffic between Europe and Asia now routes through a narrow band of Azerbaijani airspace — the only safe corridor after Russian airspace was closed to Western carriers, the Gulf was destabilised, and Afghan airspace became unusable. On the ground, the same logic applies with even greater force.

The ancient Silk Road has returned — except the camels have been replaced by freight trains, and the caravanserais by customs terminals. As US-China tensions place mounting pressure on sea lanes where the US Navy remains dominant, Beijing has invested heavily in overland alternatives through the Belt and Road Initiative. But the northern route through Russia is increasingly compromised by sanctions. The southern route through Iran and Afghanistan remains dangerous and unreliable. That leaves the Middle Corridor — running through Kazakhstan, the Caspian Sea, Azerbaijan and onward to Turkey and Europe — as the most attractive overland alternative on the continent.

The numbers are compelling. Shipping through the Suez Canal or the northern Russian route takes between 35 and 45 days. The Middle Corridor, under favourable conditions, can move goods from China to Europe in 13 to 21 days. Azerbaijan has worked hard to make the corridor function as a coherent system — coordinating tariffs, simplifying border procedures, investing in port and rail infrastructure. Central Asia and the Caucasus are increasingly functioning, in the words of one logistics analyst, as parts of a single transport artery. According to forecasts cited by Boston Consulting Group, shipping volumes through the corridor are set to grow substantially through the decade.

Water, energy and the geography of interdependence

Transport is the most visible thread binding the C6 together. Energy and water are the deeper ones — and in some respects the more consequential.

The region's water architecture is almost comically complex. Mountainous Tajikistan and Kyrgyzstan sit at the headwaters of the rivers that feed the farms and cities of the more populous — and more economically powerful — Uzbekistan and Kazakhstan downstream. For decades, disputes over water allocation were a source of genuine tension, occasionally spilling into something approaching hostility. The growing climate crisis, which is accelerating glacial retreat across the Tian Shan and Pamir ranges at alarming speed, is transforming what was a political problem into a civilisational one.

The response has been, slowly and imperfectly, cooperation. The Kambarata HPP-1 hydropower project in Kyrgyzstan — being developed jointly with Kazakhstan and Uzbekistan — sets a significant precedent: shared management of a resource that was previously contested. Kyrgyzstan develops its hydropower potential, Uzbekistan secures its energy supply, Kazakhstan gains a buffer against water scarcity. The interests, for once, align.

Energy tells a similar story of divergent endowments being knitted together. Kazakhstan has oil. Turkmenistan has enormous gas reserves — among the largest in the world — that have historically been monetised almost exclusively through Russian pipelines, a dependency that the post-2022 geopolitical environment has made uncomfortable for everyone. Uzbekistan, uniquely positioned with borders touching all other C5 members, is emerging as the region's central grid — physically and politically.

Azerbaijan, in this architecture, is the exit valve. Agreements on laying a deep-sea cable across the Caspian Sea and integrating regional power grids could, within years, enable exports of renewable electricity from Kazakhstan and Uzbekistan toward European markets. Green hydrogen is a longer-term possibility being discussed with genuine seriousness in European energy ministries. As Serikuly summarises: "A broader energy hub is gradually taking shape, linking the Caspian region with the European Union through existing and planned infrastructure."

The consumer markets that investors are only beginning to notice

The third dimension of the C6's emerging significance is the least glamorous and perhaps the most durable: it is becoming a serious investment destination.

The combined population of the five Central Asian republics plus Azerbaijan is approximately 94mn people, with a median age considerably younger than either Europe or China. Combined GDP exceeds $650bn at current estimates — not large by global standards, but growing, increasingly coordinated, and sitting astride some of the most important trade routes on the planet. For international investors, the region is gradually presenting itself as a more coherent economic space: not yet a single market, but something moving in that direction.

Kazakhstan remains the system-defining economy — its oil wealth, sophisticated financial infrastructure and active diplomacy give it an anchor role that the others acknowledge, if not always formally. But it is Uzbekistan, under President Shavkat Mirzi y/yev, that has arguably driven the most dramatic transformation. A country that was effectively closed to foreign investment under the long rule of Islam Karimov has, since 2016, pursued liberalisation with unusual consistency and speed. Uzbekistan's centrality — geographical, demographic, diplomatic — makes it the connective tissue of the entire project.

Harmonisation of customs rules, tariffs, digital documentation and investment procedures is underway, reducing friction for international capital. As one investor familiar with the region notes, coordinated policies are helping attract investment for large-scale projects ranging from manufacturing to petrochemicals, and Azerbaijan's integration gives Central Asia more direct access to financial instruments and investment hubs connecting the Caspian to Europe.

The Turkic world: Erdogan's long game

Woven through all of this — transport, energy, investment — is a cultural and civilisational thread that may ultimately prove the most binding of all. And at its centre, increasingly, stands Turkish President Recep Tayyip Erdogan.

Most of the C6 nations share Turkic linguistic and cultural heritage. Azerbaijanis and Uzbeks, Kazakhs and Kyrgyz, Turkmens and Turks — the linguistic family is vast, the cultural overlap deep. The Organisation of Turkic States, formerly the Turkic Council, was refounded and significantly upgraded under Erdogan's active sponsorship in 2021. Its membership now runs from Istanbul to the Chinese border, encompassing Turkey, Azerbaijan, Kazakhstan, Uzbekistan, Kyrgyzstan and, as an observer, Turkmenistan. Hungary, improbably, also holds observer status — a reflection of the Orban government's theory of Finno-Ugric cultural kinship with the Turks that is as politically revealing as it is historically eccentric.

Erdogan's interest in the region is strategic as much as cultural. Turkey is a Nato member, an EU candidate state, a significant military power and, increasingly, an autonomous geopolitical actor that resists easy categorisation as either Western or Eastern. Central Asia offers Turkey something it lacks in its immediate neighbourhood: a sphere of genuine cultural influence unthreatened by Arab nationalism, Iranian ambition or Russian dominance.

In May 2026, leaders from all seven member and observer states of the Organisation of Turkic States met and signed new commitments on economic, security and cultural cooperation — an event that passed largely unremarked in Western capitals but represented the most substantive multilateral agreement in the Turkic world in a generation. The agenda covered trade facilitation, joint infrastructure investment, defence cooperation and — pointedly — a shared digital currency framework that would reduce reliance on dollar-denominated transactions.

Erdogan's pitch to Central Asia is not subtle. Turkey offers what Russia once did — a big brother with shared cultural roots and genuine soft power — without the imperial resentments that Russian hegemony accumulated over two centuries. It offers what China provides in terms of infrastructure investment and commercial depth, but without the debt dependency concerns that China's BRI partnerships have generated across the developing world. And it offers a bridge to Europe and Nato that the Central Asian states, for all their declared neutrality, quietly value.

The relationship is not without friction. Ankara's ambitions in the region bump against Chinese economic dominance, Russian political leverage, and the scepticism of Central Asian elites who have learned, across centuries of experience, to be wary of powerful neighbours bearing gifts. Erdogan's Islamic politics sit uneasily with the secular governing traditions of Kazakhstan and Uzbekistan, where the memory of Soviet-era anti-clericalism runs deep in state institutions. And Turkey's own economic turbulence — years of unorthodox monetary policy, high inflation, a volatile lira — has limited its capacity to back its regional ambitions with serious investment capital.

But the direction is clear. The Organisation of Turkic States is no longer a cultural talking shop. It is becoming a vehicle for economic coordination, infrastructure investment, and — carefully, and with studied ambiguity — a degree of collective security cooperation that none of its members would describe as an alliance but which functions, in practice, as something approaching one.

The shape of what is emerging

Central Asia is not becoming the European Union. Nobody in Tashkent or Astana or Baku is seriously contemplating the kind of pooled sovereignty that European integration required. The five states still have different foreign policy priorities, different relationships with Russia and China, and different tolerances for the kinds of compromise that deep integration demands. Water rights, border management, energy pricing and transit competition remain sensitive. Turkmenistan, under its idiosyncratic leadership, remains the region's great holdout — formally neutral to the point of isolation, engaging selectively and on its own terms.

What is emerging instead is something that analysts are beginning to call soft regionalism or coordinated pluralism — a model of cooperation that is practical rather than ideological, issue-specific rather than comprehensive, and calibrated carefully enough that no single external power can claim to control it. The C5 plus Azerbaijan, loosely orbited by Turkey, is not a bloc in any formal sense. But it is beginning to function like one where it matters most: in negotiations with Beijing over BRI terms, with Brussels over energy supply, with Washington over security architecture, and with Moscow over the terms of a relationship that has changed fundamentally since February 2022.

The region sits, once again, at the geopolitical centre of the world — between the great powers of East and West, between the energy needs of Europe and the manufacturing surplus of Asia, between the old order that is fracturing and the new one that has not yet taken shape. The Silk Road cities of Samarkand and Bukhara were, for centuries, among the most important places on Earth precisely because they sat at the intersection of everything.

They may be about to rediscover what that feels like.