The Red Sea: Iran's Next Deterrence Strategy
Concentric assesses the latest U.S.-Iran reignition in the Persian Gulf has elevated the Red Sea from a regional security concern to a potentially strategic theatre of proxy competition. As Tehran increasingly recognizes the coercive value of maritime disruption, the Bab el-Mandeb Strait is likely to complement the Strait of Hormuz within Iran's broader deterrence strategy. Combined with the Horn of Africa's fragmented security environment, this significantly increases long-term risks to global shipping, supply chains and multinational business operations.
OVERVIEW
The Islamabad memorandum of understanding (MoU) signed on 17 June 2026 ended the initial phase of the Middle East conflict but left control of the Strait of Hormuz deliberately unresolved: it committed Iran only to "best efforts" for safe passage, with a 60-day suspension of transit fees which implicitly provided an opportunity for Iran to reintroduce charges once the window closed. That ambiguity proved unsustainable during a U.S.-declared diplomatic pause around the funeral of Supreme Leader Khamenei, when Iran attacked three commercial vessels transiting the Strait July 5 and 6, prompting U.S. Central Command (CENTCOM) to launch approximately 80 retaliatory strikes on Iranian targets. The exchange underscored a dual lesson for Tehran: maritime coercion remains a highly effective way to impose economic and political costs, but acting directly in Hormuz prompts swift, heavy retaliation on Iranian territory. We assess this asymmetry could push Iran toward its lower-risk, already-primed proxy channel, the Houthi-controlled Bab el-Mandeb corridor in the Red Sea, where it can sustain comparable pressure on global shipping while distancing itself from direct blame and retaliation.
ANALYSIS
The Strait of Hormuz episode demonstrated the threat of disrupting strategic maritime transit routes which can generate global economic and political consequences without requiring sustained conventional military operations. Iran lacked the legal framework to close Hormuz outright, but the prospect of disruption triggered oil-price volatility, elevated shipping-insurance premiums, and contingency planning across international markets proving effective against Western commerce.
Iran is likely to place greater strategic importance on the Gulf of Aden and the Bab el-Mandeb Strait. Unlike the Strait of Hormuz, where disrupting commercial shipping would almost certainly require direct Iranian involvement and risk immediate military retaliation, the Red Sea allows Iran to project similar strategic effects indirectly through its long-standing support for the Yemen-based Houthi movement. The Bab el-Mandeb Strait carries approximately 12 to 15 percent of global trade, around one-third of global container traffic, and significant volumes of Gulf energy exports bound for Europe; the waterway is highly vulnerable to disruption. As demonstrated over the past two years, relatively limited attacks against commercial shipping have repeatedly forced multinational carriers to reroute vessels around the Cape of Good Hope, increasing voyage times by up to two weeks, driving freight costs higher and disrupting global supply chains. The effectiveness of this approach stems from its asymmetry; comparatively inexpensive missiles and drones can generate disproportionate economic and geopolitical effects, making the Red Sea an increasingly attractive instrument within Iran's broader deterrence strategy.
The effectiveness of such a strategy is further reinforced by the wider security environment surrounding the Horn of Africa. Rather than operating in isolation, the Red Sea sits adjacent to one of the world's most politically fragmented regions, where weak governance, ongoing conflict and competing external interests create an increasingly permissive operating environment for proxy activity.
Sudan's civil war has significantly weakened state authority along an important section of the Red Sea coastline.
Somalia continues to contend with Al-Shabaab's insurgency despite sustained international counterterrorism operations and a resurgence of piracy activity.
Ethiopia's political and economic pressures, coupled with unresolved tensions with Eritrea over access to the Red Sea, continue to generate uncertainty across the Horn.
Yemen, situated directly opposite the Horn, remains divided following years of civil war, allowing the Houthis to retain effective control over much of the country's western coastline overlooking one of the world's busiest shipping lanes.
This fragmentation complicates international efforts to secure the Gulf of Aden, Bab el-Mandeb, and Red Sea and increases opportunities for state and non-state actors to exploit instability. The concentration of foreign military forces further illustrates the region's growing strategic importance. Djibouti hosts military facilities belonging to the United States, China, France, Italy and Japan, while Saudi Arabia, the United Arab Emirates and Turkey continue expanding their political and security presence across the Horn. Russia has also sought greater access to the Red Sea through Sudan, while China continues investing heavily in regional infrastructure under the Belt and Road Initiative. The convergence of competing military, political and economic interests significantly increases the probability that localized crises could rapidly assume broader geopolitical significance.
For multinational organizations, this represents a shift in the nature of maritime risk. The principal challenge is no longer isolated attacks against individual vessels but the emergence of the Red Sea as a persistently contested operating environment in which commercial shipping has become an instrument of geopolitical competition. Shipping companies are increasingly adapting through dynamic voyage planning, enhanced naval coordination, intelligence-led routing and revised insurance arrangements. However, these measures mitigate rather than eliminate risk. Businesses dependent on global supply chains remain exposed to freight volatility, increased transportation costs, delays in inventory movements and heightened operational uncertainty should regional tensions intensify.
OUTLOOK
Concentric assesses recent U.S.-Iran confrontation will likely accelerate Tehran's reliance on maritime coercion as an instrument of regional deterrence in the short to medium term. While Iran remains unlikely to seek sustained conventional conflict with the United States, the crisis has reinforced the strategic value of threatening internationally significant maritime corridors to impose economic and political costs on Western governments and their allies.
The Houthis are also likely to retain the capability to conduct offensive operations against commercial shipping in the region. However, renewed conflict against Saudi Arabia and Yemeni Government forces risks reducing the Houthi's willingness to act solely as an Iranian proxy as the group's attention remains focused on the land-based conflict.
Conversely, Concentric assesses it is unlikely Iran will seek to completely stop all traffic through the Bab el-Mandeb. Such actions would carry substantial economic and military consequences for all parties. However, the credible threat of disruption is likely to remain sufficient to influence commercial behavior, increase insurance premiums and require sustained multinational naval deployments. Consequently, periodic attacks, temporary shipping disruption and heightened maritime security measures are likely to remain defining features of the regional operating environment.
HOW CONCENTRIC CAN HELP
Concentric offers a suite of services designed to mitigate risks and enable secure business operations in unpredictable environments:
Travel Risk Assessments and Alerting: Concentric offers customized reports offering real-time, itinerary-focused evaluations of changing geopolitical, security, and environmental conditions. We also offer tailored, real-time intelligence based on travelers' live locations and planned movements.
Security Operations: Concentric provides on-the-ground advisory support, executive protection, and operational security planning across MENA.
Evacuation and Crisis Management Planning: Concentric's intelligence and security teams deliver crisis-management support, including evacuation route planning, maritime risk assessments, safe-haven identification, and localized emergency response.
Through Concentric's advanced geopolitical intelligence strategies, businesses can effectively navigate travel risks, safeguard their personnel, and ensure operational continuity across global environments. For more information or to arrange a consultation to enhance your organization's travel security capabilities, please contact our Global Intelligence team today.
