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From Chokepoint Disruption to Integrated Maritime Intelligence and National Resilience

There has been a significant shift in the maritime threat environment. The problem is no longer simply a series of attacks on individual merchant ships. It is becoming a multi-layered maritime security crisis involving strategic chokepoints, military confrontation, navigation disruption, mines, drones, missiles, coercive interdiction and contested control of maritime space.

Three operationally connected areas must therefore be assessed as one maritime security system:

1. Strait of Hormuz / Persian Gulf
2. Bab al-Mandab / Southern Red Sea
3. Gulf of Aden / Somali Basin

These areas should not be analysed independently. Disruption at either Hormuz or Bab al-Mandab can produce route displacement, longer voyages, increased insurance costs, higher fuel consumption, additional naval escort requirements and pressure on alternative ports and maritime corridors.

1. THE SCALE OF THE THREAT: 65 ATTACKS AND A CHANGING PATTERN

Sixty-five attacks on merchant vessels in the Persian Gulf, Strait of Hormuz and Gulf of Oman have been recorded since the beginning of hostilities, including two further attacks between 10 and 17 September involving EL GAIA and ST. HELENA.

The number is important, but the pattern is arguably more significant than the number itself.

The incidents demonstrate that maritime insecurity is becoming multidimensional. Merchant shipping can be exposed not only to direct kinetic attacks but also to navigation interference, communications disruption, coercive boarding, seizure, route restriction and uncertainty generated by credible reports of mines or other hazards.

2. REGIONAL THREAT ASSESSMENT

Area	Threat assessment
Persian Gulf	MODERATE
Strait of Hormuz	SEVERE
Gulf of Oman	MODERATE
Arabian Sea	MODERATE
Bab al-Mandab / Southern Red Sea	SUBSTANTIAL
Gulf of Aden	SUBSTANTIAL
Somali Coast / Basin	MODERATE

The SEVERE classification for the Strait of Hormuz is particularly significant because the threat is not limited to kinetic attacks.

Three additional vulnerabilities are identified:

• Possible mine contamination
• Navigation-system disruption
• Communication-system disruption

Together, these create what can be described as a compound maritime threat.

A vessel could theoretically survive a missile or UAV attack yet become operationally vulnerable because its navigation picture is degraded, communications are disrupted, or its route is constrained by suspected mine locations.

3. THE MINE THREAT: UNCERTAINTY AS A WEAPON

The mine threat deserves particular attention. Several mine positions have reportedly been identified, while the available reporting explicitly states that these positions cannot be independently verified. US NCAGS nevertheless advises vessels to pass at least one nautical mile south of the reported positions.

This is strategically important.

A suspected minefield does not have to be confirmed to affect maritime behaviour. The mere existence of credible mine reports can:

1. alter shipping routes
2. slow transit
3. increase navigational restrictions
4. create demand for mine-countermeasure forces
5. increase insurance exposure
6. generate uncertainty for masters and ship operators
7. create congestion around safer navigational corridors

In other words, uncertainty itself becomes a weapon of maritime disruption.

4. BAB AL-MANDAB: FROM MARITIME THREAT TO TERRITORIAL-CONTROL PROBLEM

One of the most important developments is the evolving relationship between the Houthi-controlled areas of Yemen and the Bab al-Mandab shipping corridor. The assessment describes substantial territorial gains along Yemen’s western coast, including control of Mocha, Mayyun/Perim and strategically important positions around the Hanish Islands. The significance is not simply that additional territory has been captured. It is the geographic relationship between those positions and the international shipping lane. These positions can potentially improve the ability to:

• monitor maritime traffic;
• deploy UAVs;
• deploy missiles;
• deploy unmanned surface vessels; and
• influence shipping close to the chokepoint.

The strategic implication is that the threat can potentially evolve from stand-off harassment toward a more persistent area-denial capability.

5. WHY DECLARED TARGETING LIMITATIONS DO NOT ELIMINATE RISK

The Houthi position that maritime targeting remains limited to Saudi-linked vessels and that other international shipping is not deliberately targeted provides only limited reassurance for commercial operators. There are at least three reasons: misidentification, escalation, unintended consequences

A vessel does not necessarily need to be deliberately selected to become a casualty. Modern maritime warfare creates several pathways to unintended exposure:

• Target-identification error
• Wrong vessel classification
• Collateral engagement
• Military escalation
• Expansion of targeting criteria
• Previously neutral shipping becoming exposed

Shipping companies should therefore avoid basing risk calculations solely on declared targeting policies.

6. THE ATTACK HISTORY: DIVERSITY OF TARGETS AND METHODS

The 65-vessel incident list contains a wide range of vessel types, including: Crude oil tankers, product tankers, chemical tankers, LNG carriers, bulk carriers, container vessels, cargo vessels, tugs, drilling infrastructure.

The incidents also involve multiple attack mechanisms: Unidentified projectiles, missiles, UAVs, small boats, small-arms fire, RPGs, apparent explosive devices, attacks against vessels during ship-to-ship transfer.

For example, MSC FRANCESCA was reportedly fired upon, ordered to anchor by IRGC via VHF and subsequently seized, while EUPHORIA was fired upon but its crew retreated to the citadel and avoided seizure.

This demonstrates that the threat spectrum extends beyond destruction.

There are at least four distinct objectives:

1. Destruction — disable or damage the vessel.
2. Disruption — interrupt propulsion, communications or cargo operations.
3. Deterrence — make commercial operators avoid particular waters.
4. Coercive control — board, divert, seize or otherwise influence the vessel.

The fourth category is particularly important for maritime security planners because it changes the nature of the threat from simple attack to contested control of maritime movement.

7. TARGETING THE SHIP’S CRITICAL SYSTEMS

A striking feature of the incidents is the frequency of damage around: Engine rooms, steering systems, ballast tanks, cargo holds, bridge and superstructure, propulsion systems.

Examples include GASLOG SHANGHAI, where an impact near the engine room caused fire, blackout and loss of propulsion, and MINOAN PIONEER, where an engine-room strike resulted in fire and evacuation.

The broader operational lesson is that maritime resilience cannot be measured only by hull survivability.

A ship can remain physically afloat yet become mission-killed if it loses: Propulsion, steering, electrical power, communications, navigation, firefighting capability.

Engineering redundancy, damage control, crew emergency procedures and recovery capability must therefore be considered integral components of the security architecture.

8. GULF OF ADEN: PIRACY HAS NOT DISAPPEARED

Piracy remains a relevant component of the Western Indian Ocean threat environment. The following vessels are currently reported as being held by pirates in the Somali Coast / Somali Basin:

• HONOUR 25
• EUREKA
• ASANA
• SEAMULL / SIBU 1

The release of MV SWARD is a positive development, but continued detention of other vessels demonstrates that Somali pirate groups retain the ability to maintain control of hijacked vessels for extended periods. The deeper concern is threat convergence. A merchant vessel transiting the western Indian Ocean could potentially face:

• Piracy
• Houthi UAV or missile threats
• Military operations
• Navigation disruption
• Commercial uncertainty

This produces a considerably more complicated operating environment than traditional piracy alone.

9. THE STRATEGIC CONCEPT: CUMULATIVE MARITIME INSECURITY

This is perhaps the most important conclusion. Piracy and Houthi military threats should be assessed separately, but together they create a cumulatively elevated burden for merchant vessels, shipping companies and maritime security forces. The concept should be applied more broadly. The risk to a shipping company is not simply the probability of attack. A more useful conceptual model remains: Threat × Exposure × Vulnerability × Consequence × Duration. A relatively low-probability event can become strategically serious when its consequences are enormous and the disruption persists for an extended period.

10. STRATEGIC RELEVANCE FOR MAURITIUS AND THE WESTERN INDIAN OCEAN

Mauritius sits outside the immediate conflict zones, but its maritime economy is connected to the Arabian Sea–Indian Ocean–Red Sea–Suez maritime system. The security question therefore becomes: What happens when ships reroute?

Possible consequences include:

1. Increased vessel traffic through alternative Indian Ocean routes
2. Longer voyages
3. Increased demand for bunkering
4. Greater demand for ship repair and maritime support
5. Increased maritime surveillance requirements
6. Changes in port-call patterns
7. Greater pressure on coastal monitoring
8. Potential movement of illicit cargo through alternative maritime routes

The strategic risk is therefore not necessarily a direct military attack on Mauritius. It is the secondary and tertiary maritime-security effects generated by regional disruption.

11. MAURITIUS SHOULD THINK BEYOND PORT SECURITY

The traditional model is: Port → perimeter → access control → cargo inspection

The emerging environment requires a broader architecture: Port → coastal waters → offshore approaches → vessel monitoring → intelligence → financial intelligence → customs → maritime domain awareness

This is particularly relevant to small craft. Large commercial vessels are generally visible through established maritime tracking systems. Smaller vessels can potentially exploit:

• AIS gaps;
• coastal traffic;
• fishing activity;
• recreational boating;
• transshipment opportunities; and
• isolated anchorages.

Pleasure Craft Monitoring and Small Craft Monitoring therefore become strategically relevant to the wider maritime-security architecture.

12. FROM MARITIME SURVEILLANCE TO MARITIME INTELLIGENCE

The operational environment requires integration of:

• AIS
• VTS / VTMS
• Radar
• Satellite imagery
• Coastal surveillance
• Port intelligence
• Customs intelligence
• Law-enforcement intelligence
• Financial intelligence
• Human intelligence

The objective should be a Common Operating Picture (COP).

The question should not simply be: “Where are the vessels?” The more important intelligence questions are:

• Who owns them?
• Who operates them?
• Where did they come from?
• Where are they going?
• What cargo are they carrying?
• What is their behavioural pattern?
• What communications anomalies exist?
• What previous port calls occurred?

That is the transition from maritime surveillance to maritime intelligence.

13. STRATEGIC WARNING FOR MAURITIUS

The most important lesson is that maritime threats increasingly migrate through networks rather than geography. A conflict in Hormuz can affect:

• Hormuz → Gulf of Oman → Arabian Sea → Indian Ocean → East Africa → Mauritius

Likewise:

• Yemen → Bab al-Mandab → Gulf of Aden → Western Indian Ocean

Consequently, Mauritius should not define maritime security purely according to its territorial waters. It should define it according to its maritime connectivity and economic exposure.

14. A MAURITIUS-ORIENTED MARITIME SECURITY ARCHITECTURE

A Mauritius-oriented maritime security framework can be structured around six layers.

LAYER 1 — MARITIME DOMAIN AWARENESS Continuous monitoring of commercial and small-vessel traffic.

LAYER 2 — INTELLIGENCE FUSION Integration of MPA, Coast Guard, Police, Customs, Financial Intelligence and port stakeholders.

LAYER 3 — RISK PROFILING Identification of vessels, operators, routes and behavioural anomalies requiring additional scrutiny.

LAYER 4 — PORT AND COASTAL PROTECTION Physical security, access control, K9 capability, scanning, surveillance, drones and rapid response.

LAYER 5 — OFFSHORE INTERDICTION Clear protocols for suspicious vessels approaching territorial waters.

LAYER 6 — STRATEGIC RESPONSE A unified command structure capable of responding to:

• Narcotrafficking
• Weapons trafficking
• Piracy
• Suspicious vessels
• Maritime terrorism
• Cyber and navigation disruption
• Sanctions evasion
• Hostile-state activity

15. FINAL STRATEGIC ASSESSMENT

The most important message is not simply that there are 65 attacked vessels. It is that the maritime environment is moving toward persistent contested access around strategic chokepoints. For the Western Indian Ocean, the key strategic question is therefore no longer simply:

“Can Mauritius prevent an attack?”

But instead:

“Can Mauritius detect, identify, understand and respond to abnormal maritime activity before a regional threat becomes a domestic maritime-security problem?” That is the central shift from traditional port security to integrated maritime intelligence and national maritime resilience.

REGIONAL THREAT ASSESSMENT

Area	Threat assessment
Persian Gulf	MODERATE
Strait of Hormuz	SEVERE
Gulf of Oman	MODERATE
Arabian Sea	MODERATE
Bab al-Mandab / Southern Red Sea	SUBSTANTIAL
Gulf of Aden	SUBSTANTIAL
Somali Coast / Basin	MODERATE

Author: Mauritius-based Bruneau Laurette is Director of DRCS Africa HQ and an elite defence and security consultant with over 25 years of experience in high-risk environments, maritime anti-piracy and port security. He has advised the governments of Mauritius, Seychelles and Tanzania, established specialist tactical units and trained law enforcement and correctional officers.