At a critical moment, with the prospect of war looming over Iran even as US and Iranian negotiators meet in Geneva, China and Russia have quickly arranged a new round of trilateral military drills with Tehran under the banner “Maritime Security Belt 2026.” The exercises are set to take place in the Strait of Hormuz, one of the world’s most strategically vital corridors for international navigation and trade.
Beijing and Moscow are deploying advanced destroyers and other naval vessels in what strategic analysts describe as a signal that Iran can raise the strategic costs for multiple actors should Washington choose to initiate another war. Iran holds a significant place in both Chinese and Russian strategic planning, prompting questions about whether either power would move beyond political signaling to direct involvement in the event of a US–Iran conflict.
The timing of the drills, amid heightened tensions and sensitive diplomacy, also invites scrutiny of the strategic objectives driving Beijing and Moscow, and the extent to which such moves could shape US calculations toward Iran.
Strategic analysts note that Iran is operating on several fronts to strengthen both its negotiating leverage and its deterrent posture in response to US demands in the nuclear talks, while also seeking to establish political deterrence against Washington. In addition to escalating rhetoric and the supreme leader’s defiant warning —threatening that if the United States deploys an aircraft carrier, Iran possesses the capability and weaponry to sink it — Tehran has carried out unilateral military drills in the Strait of Hormuz.
These exercises simulated Iran’s capacity to assert calculated control over the strait, framing such dominance as a tactical pressure tool designed to demonstrate operational readiness. Numerous intelligence reports further indicate that Iran has expanded military coordination with China and Russia, reportedly obtaining advanced defensive systems from both countries, along with precise intelligence on US troop movements across the Gulf of Oman, the Arabian Sea, the northern Indian Ocean, the Red Sea and even the Mediterranean. The cumulative message is that Iran does not stand isolated, but instead maintains backing from major international powers — underscoring its strategic significance to Beijing and Moscow, particularly when compared with other partners such as Venezuela.
All available Chinese and Russian strategic indicators suggest that Beijing and Moscow’s participation in trilateral military exercises, amid escalating US–Iran tensions, does not signal readiness to enter a war alongside Tehran in the event of a US attack — something Iranian decision-makers themselves are understood to recognize. Both powers appear wary of a direct military confrontation with the United States over Iran, fully aware of the costs and potentially catastrophic consequences. Such involvement could risk triggering a broader global conflict, even a nuclear escalation. For China, it would carry the prospect of severe economic losses and possible military escalation around Taiwan. For Russia, it would mean further depletion of already strained resources and the disruption of the balance it seeks to maintain in its war with Ukraine. Direct participation in a war alongside Iran would likely upset Moscow’s carefully calibrated strategic equilibrium with the West in the Russia-Ukraine conflict, potentially prompting expanded Western military support to Kyiv, including advanced strategic weapons capable of striking deep inside Russian territory and altering the trajectory of the war.
In China’s case, economic calculations weigh heavily in the context of US–Iran tensions in the Middle East. Beijing depends substantially on Gulf oil and generally prioritizes regional stability to safeguard its trade flows, energy imports and broader commercial interests. Its approach typically centers on leveraging economic influence to secure political arrangements, rather than engaging in direct military confrontation.
Russia, for its part, may derive certain advantages from heightened tensions in the Middle East, viewing instability in the Gulf as a factor that can drive up oil prices, divert US attention from Ukraine and expand Moscow’s diplomatic maneuvering space. Even so, the Kremlin does not favor a large-scale war that could undermine its regional partners, nor does it seek a direct military clash with Washington. Against this backdrop, direct Chinese or Russian military intervention alongside Iran appears highly unlikely. In the event of a major escalation with the United States, their support would more plausibly take the form of intelligence sharing, technical assistance and political backing —particularly within the UN Security Council to counter potential US-led resolutions. Assistance could also include limited and largely symbolic arms transfers or logistical aid unlikely to decisively alter the trajectory of a conflict, as well as economic measures aimed at easing the impact of sanctions.
If direct Chinese and Russian involvement alongside Iran in a potential US war remains improbable, the question then shifts to the strategic purpose of conducting such maneuvers at a moment when any miscalculation could ignite the very conflict all sides seek to avoid. Through their participation, Beijing and Moscow appear intent on reinforcing the narrative that a war with Iran would carry severe global economic consequences, thereby encouraging Washington to reassess the costs embedded in its military calculus. The visible presence of two major powers in these exercises amplifies international awareness of Iran’s maritime leverage, particularly its capacity to exert pressure through a waterway central to global energy flows. The drills underscore that a confrontation with Tehran would not be confined to air or missile exchanges, but could extend to threats against critical trade and energy routes. By elevating the perceived risks to global markets and freedom of navigation, the exercises heighten the strategic sensitivity surrounding any prospective US military action. In effect, they serve to constrain the scope of potential operations by signaling that escalation could provoke retaliatory measures with far-reaching economic repercussions.
Beijing and Moscow are also aware that their visible alignment with Iran in joint naval drills adds another layer of complexity to any US decision to launch military strikes. From Washington’s perspective, the equation would no longer appear strictly bilateral. For China and Russia, a major US escalation against Iran would be interpreted as intervention within strategic spheres of influence in the Middle East — an assessment that could carry indirect repercussions across the broader spectrum of unresolved US tensions with both powers. By taking part in the exercises while diplomatic talks are underway, Beijing and Moscow appear intent on inserting economic risk into Washington’s strategic calculus. The message is that military escalation could unsettle global energy markets at a moment of fragile stability. Even symbolic rehearsals in the Strait of Hormuz heighten market sensitivity and signal the potential vulnerability of global oil flows. The prospect of rising energy prices and economic disruption for the United States and its allies, in turn, may generate additional pressure on US policymakers to favor negotiation and adopt a more restrained posture in the event of confrontation. In conclusion, Beijing and Moscow appear to view the US military buildup against Iran as part of a broader pattern of pressure directed at their strategic partners across multiple regions. From their perspective, such moves fit within a wider US effort to preserve unipolar dominance in the ongoing contest over global leadership and to obstruct the emergence of a multipolar order favored by China, Russia and Iran. This reading is informed by developments they interpret as setbacks to their strategic network, including the loss of allied influence in Syria and political shifts affecting partners such as Venezuela. Even so, this assessment does not translate into an expectation of direct Chinese or Russian military intervention on Iran’s behalf in the event of war. Rather, through their participation in naval maneuvers at this sensitive moment, Beijing and Moscow are projecting a cautionary scenario to the international community — one that underscores the severe economic consequences of a military strike on Iran. By highlighting the vulnerability of a waterway central to global trade and energy flows, they aim to heighten international awareness of the costs of escalation, complicate potential US military planning by drawing attention to possible Iranian retaliation in the strait, and employ the exercises as a calibrated pressure tool during nuclear negotiations. At a minimum, the objective appears to be discouraging a comprehensive escalation and steering Washington away from a broad military confrontation.
