Since early 2026 there has been a marked rise in incidents affecting commercial vessels in the Gulf of Oman, the southern Red Sea and parts of the Arabian Sea. Analysts and officials have widely linked these disruptions to Iranian forces and allied proxy groups, acting in response to earlier US strikes. The incidents range from drifting and contact mines and swarm attacks by fast boats to armed drones, electronic interference, and periodic missile strikes. The pattern appears designed to raise the economic and operational costs of commercial navigation, signal resolve to domestic and regional audiences, and pressure Washington and its partners.
What Tehran is doing and why
– Methods: Reported operations include limpet and contact mines, small-boat swarm harassment, short-range cruise or ballistic missile strikes against military or logistics targets, and armed unmanned aerial systems used for surveillance and attacks. Some actions are clandestine—mines affixed to hulls, electromagnetic disruption, or covert boardings—while others are overt, such as publicizing captured ships.
– Aims: Tehran’s objectives appear to be deterrence of further US or allied strikes, punishment of states perceived as aligned with Washington, and escalation of the political and financial costs of those policies. By threatening global shipping, Iran exploits the vulnerability of international trade routes to extract leverage without necessarily engaging in large-scale conventional combat.
– Plausible deniability: Iran frequently operates through proxies or issues denials, creating ambiguity about responsibility. That ambiguity complicates legal and political responses and reduces the appetite for immediate, forceful retaliation.
Can the US stop the attacks?
Short answer: not entirely, and not on its own. The United States can make such campaigns harder and more costly for Iran and its partners, deter or degrade some capabilities, and protect significant amounts of maritime traffic. But completely eliminating a dispersed, asymmetric maritime campaign without a political accommodation would be extremely difficult and potentially costly.
What the US can do
– Patrols and escorts: Carrier strike groups, destroyers, mine-countermeasure ships and increased patrols in key corridors can protect transits and respond to incidents. Escorts reduce risk for specific convoys but require large, sustained commitments and cannot cover every commercial vessel indefinitely.
– Mine countermeasures and intelligence: Better surveillance—maritime patrol aircraft, drones, satellites—and more mine-clearing units and rapid-reaction teams improve situational awareness and response speed. Enhanced ISR also helps attribute attacks and identify bases or supply lines but needs persistent assets and regional access.
– Ship defenses and best practices: Advising ship operators on alternative routing, hull hardening, electronic countermeasures, and deploying close-in weapons or private security can lower vulnerability and deter opportunistic attacks.
– Limited kinetic action: Targeted strikes against Iranian or proxy assets, supply lines, and command nodes can degrade operational capacity. Such strikes, however, carry the danger of escalation and may provoke wider or more asymmetric retaliation.
– Coalitions and diplomacy: Multinational maritime task forces spread the burden, lend legal and political legitimacy to defensive measures, and present a unified deterrent. Diplomatic efforts at the UN, IMO and bilaterally with regional actors can pressure Iran and create pathways for de-escalation. Cooperation with Gulf states, Turkey, Pakistan and India is particularly important for basing and logistics.
– Economic and legal levers: Sanctions, asset freezes and legal claims against states or groups implicated in attacks raise non-military costs. Shipping insurers and operators may reroute or suspend services in response, which undercuts the coercive impact of attacks but inflicts wider economic pain.
Limits and risks
– Geography and scale: Narrow chokepoints like the Strait of Hormuz and Bab al-Mandeb, plus complex littoral waters, favor small, inexpensive weapons and tactics that are hard to police constantly.
– Attribution problems: Ambiguous incidents make legal and political justification for counterstrikes difficult. Misattribution risks drawing the US into a broader conflict with serious consequences.
– Escalation: Strong US responses can deter but also provoke further asymmetric or kinetic retaliation—against US bases, partner shipping, or infrastructure. Domestic politics on both sides influence thresholds for action.
– Economic fallout: Rerouting, insurance hikes and disrupted energy supplies raise global costs, affecting allies and neutrals and complicating political choices.
– Political constraints: US domestic politics and allied divisions limit options for unrestrained military action; public expectations for decisive responses can be hard to meet without risking wider war.
Realistic outcomes
– Short term: Expect continued episodic attacks, stepped-up multinational patrols, selective US strikes against clearly identified nodes, and increased sanctions and diplomatic pressure. Most commercial traffic will continue but at higher cost and with more detours or security measures.
– Medium term: Credible, sustained deterrence is possible if the US and partners maintain presence, degrade key Iranian capabilities, and keep diplomatic channels open. Yet without a negotiated political settlement, Iran retains the ability to apply periodic pressure.
– Long term: A durable end to maritime coercion will likely require a political solution—either significant de-escalation and accommodation with Tehran or a new regional security arrangement that reduces Iran’s incentives to use shipping as leverage.
Bottom line
The US, together with partners, can significantly blunt and raise the cost of the maritime campaign targeting commercial shipping, but it cannot guarantee a permanent stop through military means alone. Achieving lasting security for international sea lanes will depend on a mix of sustained deterrence, coalition burden-sharing, economic measures and—ultimately—a political resolution that removes the incentives driving Iran’s maritime pressure.