Executive Intelligence Snapshot
Iran and Tajikistan are actively expanding a bilateral partnership based on common Persian heritage, broadening their focus from foundational cultural exchange toward joint technical, energy, and economic initiatives.
Despite ongoing conflict in the Persian Gulf, the Proposal of a “union of Persian-speaking countries and regions” illustrates that Tehran remains committed to a pragmatic, non-ideological Central Asian policy aimed at building regional cooperation.
Simultaneously, Central Asian states continue to view Iran as an indispensable security partner and a vital gateway for maritime trade and transport infrastructure.
Background
On 16 August 2026, during a meeting with Tajik Minister of Energy and Water Resources Dalir Jum’a, Iranian First Vice President Mohammad Reza Arefproposed establishing a “Union of Persian-Speaking Countries and Regions” to strengthen cultural and civilisational cooperation among Persian-speaking communities. The Iranian diplomat stressed that that Iran and Tajikistan’s shared cultural, civilisational and linguistic heritage provides a strong foundation for expanding bilateral relations.
Relations between Tehran and Dushanbe experienced a deep freeze from 2015 to 2019, triggered largely by Iran hosting Muhiddin Kabiri, the leader of the Islamic Renaissance Party of Tajikistan (IRPT) at a conference. In response, Tajikistan restricted the activities of various Iranian organizations within its borders.
Tensions escalated further in 2017 when Tajik state television aired a documentary accusing Iran of subversion during Tajikistan’s 1990s civil war. Iranian authorities have consistently denied these allegations. To this day, contemporary sources remain divided on whether Tehran funded insurgent groups, as conclusive evidence has never emerged.
Since 2021, a total strategic reset occurred, yielding visa-free travel, defence cooperation (the opening of an Ababil-2 drone factories in Tajikistan), and dozens of Memorandums of Understanding signed across trade, energy, infrastructure, cultural exchange, and security sectors.
Bilateral trade turnover grew substantially over recent years, jumping from $377.7 million in 2024 to approximately $483.9 million in 2025, a roughly 28% year-on-year increase. Continued upward trajectory persisted into 2026, with first-half trade reaching $254.3 million (up 14.8% compared to the same period in 2025).
In 2025, Iran entered the top five of Tajikistan’s largest trading partners, ranking fifth by total trade turnover. Iran’s primary exports include petrochemical products (oil bitumen, polyethylene, polypropylene), construction materials (cement, clinker), and agricultural/food products (sugar, pasta, citrus fruits). High-level bilateral commission meetings between officials (such as Tajikistan’s Ministry of Energy and Water Resources and Iran’s Oil Ministry) have established ongoing supply agreements for diesel, crude oil, and aviation fuel.
Furthermore, to sustain trade momentum, both nations have advanced transport initiatives, including planned direct railway connectivity via Turkmenistan to optimise cargo and supply chain movements across Central Asia.
Why Does It Matter?
The proposal by Iranian First Vice President Mohammad Reza Aref to establish a union of Persian-speaking countries and regions is a pan-Persianist soft-power posturing, which has long characterised the two countries ties.
Relations with Central Asia underwent a complete step-change under the Raisi presidency. It is no coincidence that these shifts materialised after 2021, the year of his election. Acting in alignment with the directives set out by Supreme Leader Ayatollah Khamenei, Raisi vigorously pursued Iran’s “Look East” policy following years of inconclusive diplomacy aimed at rekindling ties with European markets.
Although relations with individual Central Asian republics had experienced friction in preceding years, the thirteenth Iranian administration reversed the trend, ushering in an unprecedented wave of state visits. The success of these policies stems from mutual necessity: for Tehran, the northern frontier serves as an economic relief valve away from the south-western borders, where Iran finds itself militarily encircled. Conversely, for landlocked republics, Iran offers vital access to international waters and direct connectivity to Gulf and Indian markets.
Now Tehran wants to lock in this momentum. Facing sustained Western isolation, Iran leverages Pan-Persian cultural rhetoric as a low-cost vehicle to anchor itself in Eurasia. It frames trade, transit infrastructure, and scientific transfers under a shared civilizational umbrella.
The Organization of Turkic States (OTS), driven by Turkey, Azerbaijan, Uzbekistan, and Kazakhstan, has gained massive momentum in Central Asia. Iran feels culturally and geopolitically squeezed by Turkic block-building. Promoting a Persian-speaking alliance serves as Tehran’s counterweight to Ankara’s expanding influence in the region. This strategy has gained even more urgency as the US war on the Islamic Republic is favouring the Western-led Middle Corridor, which regional actors currently view as safer.
While with “union of Persian-speaking countries” Aref clearly referred to Tajikistan, with “regions” he implicitly references the non-Pashtun, Dari-speaking populations of Afghanistan (Tajiks, Hazaras). Since the Taliban takeover, both Tehran and Dushanbe share deep security anxieties regarding Sunni extremism, ethnic Pashtun dominance, and cross-border terrorism, even as both navigate complex, pragmatic realities with Kabul.
Iran has been a major player in countering regional Sunni terrorism and has a relevant role in the security architecture established by the Shanghai Cooperation Organisation (SCO). Being Tajikistan one of Central Asian most affected countries, the security issue might lay a common ground for cooperation.
President Emomali Rahmon will not sign up for an anti-Western or anti-Russian bloc. Tajikistan depends on Moscow for security, Beijing for financial support, and Western/Gulf investments for development and humanitarian aids. Dushanbe will take Iranian energy, transit (Chabahar port), and trade, but will reject risky institutional alignment that might trigger secondary sanctions.
Iran, in fact, is an Islamic Republic with Shia-centric power structures. Tajikistan is a hyper-secular state that aggressively suppresses political Islam. Rahmon would view religious influence from Tehran as a threat to his regime’s survival. Nevertheless, unlike in the Middle East where the deterrence posture of Iran also required spreading religious influence to build the so-called Axis of Resistance, Tehran’s approach to Central Asia has been characterised by a pragmatic strategy with bilateral relations based on trade, security and common infrastructure.
While Aref rightly pointed to cultural and civilisational cooperation, this also marks a revival. Decades of Soviet engineering severed direct cultural ties between the populations.
For instance, Tajiks use the Cyrillic alphabet, while Iranians use the Perso-Arabic script. Moreover, while Afghanistan officially recognised the name “Dari” for its dialect of Persian in its 1964 Constitution to promote a national identity distinct from Iran, the Soviet Union did artificially codify “Tajik” as a separate language in the 1920s to weaken regional Persian cultural continuity following 19th century imperial conflicts between the Russian and Qajar empires over shared borderlands. This broader Soviet strategy of national delimitation also led to the inclusion of historic Persian cultural centres like Samarkand and Bukhara within Uzbekistan rather than Tajikistan.
Ultimately, Tehran’s proposal seeks not a political or territorial unification, but a cultural reunion designed to foster regional exchanges, revitalise shared heritage, and drive mutual progress.
Outlook
This proposal is part of a political rhetoric designed to capitalise on restored bilateral trust while signalling soft-power strength. It offers high symbolic value for Iran at zero economic cost, even as Dushanbe selectively embraces specific benefits while maintaining a strategic distance from Tehran’s political ambitions.
In the short term, the Iranian proposal will likely remain confined to joint committees and cultural exchange programs rather than evolving into an operational supranational body. Nevertheless, it carries undeniable symbolic and historical weight across a region that was once part of the Persian sphere of influence. Setting aside lingering concerns over religious influence, this shared heritage offers valuable opportunities for pragmatic cooperation. Ultimately, regional integration supports economic stability, as countries with strong, amicable neighbourly relations consistently demonstrate greater long-term prosperity.
Beyond its symbolic value, this engagement can yield tangible economic outcomes, as evidenced by the recent expansion in bilateral trade. Highlighting this potential, Iranian diplomats have emphasized Tehran’s readiness to share its scientific and technical capabilities with neighbouring allies. For Tajikistan, key priorities include securing maritime access to the Indian Ocean via Iranian ports, advancing joint hydroelectric projects, and leveraging Iran’s engineering expertise. Conversely, Tehran views Tajikistan as an important market for its non-sanctioned goods and technology exports. As a result, practical bilateral ties are set to expand regardless of whether a formal supranational body ever materialises.
Furthermore, Tehran’s growing integration into Chinese- and Russian-led infrastructure networks will likely strengthen its regional footing. Unlike Ankara’s ambitions, Iran’s expanding presence is currently not perceived by regional actors as a strategic threat.
