Between The Regulation of the Sea and the Jus advert Bellum? – EJIL: Discuss! – Cyber Tech

Within the morning of Wednesday 25 February 2026, a Cuban authorities vessel carrying 5 border guard troops approached a speedboat, registered within the U.S. as FL7726SH, after it had, in response to Cuba’s Inside Ministry, entered its territorial waters in Falcones Cay, Villa Clara province. Upon being approached for identification by the Cuban vessel, the crew of the speedboat allegedly opened hearth resulting in the wounding of 1 Cuban commander and, within the ensuing alternate of fireplace, 4 of the individuals on board the speedboat have been killed, with the opposite six wounded.

Cuba claimed that the group was comprised of U.S. primarily based anti-government Cubans, a few of whom have been beforehand wished for plotting different assaults, and that the people on this event have been allegedly making an attempt to infiltrate the island ‘for terrorist functions’. Shortly after the incident U.S. Secretary of State Marco Rubio said that the U.S. had not been concerned and that it might perform its personal investigation, and Cuba has not expressly alleged direct U.S. involvement. 

Utilizing the FL7726SH incident as a car for evaluation, this brief piece locations the incident within the context of the related regulation of the ocean while, on the identical time, figuring out among the intersections between this framework and the jus advert bellum generally but additionally as they emerged in the course of the incident, and the attainable implications of this. 

A story of two prohibitions

The United Nations Conference on the Regulation of the Sea (UNCLOS) gives that ‘ships of all States, whether or not coastal or land-locked, take pleasure in the proper of harmless passage by means of the territorial sea’ (Article 17, UNCLOS). In that respect, vessels are prohibited from participating in non-innocent passage. Whereas defining such passage as an exercise which is ‘prejudicial to the peace, good order or safety of the coastal State’ (Article 19(1), UNCLOS), included extra particularly inside that is the prohibition of the ‘risk or use of power towards the sovereignty, territorial integrity or political independence of the coastal State, or in another method in violation of the rules of worldwide regulation embodied within the Constitution of the United Nations’ (Article 19(2)(a), UNCLOS).  

A notable facet of the prohibition discovered inside Article 19(2)(a) of UNCLOS is that it’s a close to precise replication of the prohibition of power discovered inside Article 2(4) of the UN Constitution (1945). Whereas the appliance of the prohibition in Article 2(4) is restricted to the acts of states or non-state entities performing beneath the management or course of a state, which means that it was not relevant to the incident involving FL7726SH, the prohibition as discovered inside Article 19(2)(a) applies to the acts of all ships whether or not warships, service provider ships or personal international vessels with no requirement for direct state involvement within the actions involved, which means that it’s a prohibition that FL7726SH was seemingly in breach of. Extra typically, nonetheless, such a replication in wording between the 2 prohibitions would possibly seem somewhat odd as it might appear to be making use of, in essence, what many understand (or, no less than, used to understand) to be a elementary jus cogens norm in Article 2(4) to the actions of non-state actors in Article 19(2)(a), albeit with out the formal related elevated penalties of a breach. 

A blurring between ‘rights of safety’?

It’s, nonetheless, regarding the rights that states have to guard themselves on this context that the connection between the regulation of the ocean and the jus advert bellum turns into most attention-grabbing, one thing which the FL7726SH incident notably highlights. Certainly, along with having sure ‘rights of safety’ together with to ‘take the mandatory steps in its territorial sea to stop passage which isn’t harmless’ (Article 25(1), UNCLOS), a coastal state additionally has the extra proper of safety within the type of the proper of self-defence inside Article 51 of the UN Constitution and customary worldwide regulation. 

It was on this gentle vital that inside Cuba’s preliminary categorisation of its actions on this event it talked of defending its territorial waters not expressly beneath the proper of safety contained inside UNCLOS, however relatively ‘primarily based on the precept that nationwide protection is a elementary pillar of the Cuban State in safeguarding its sovereignty and making certain stability within the area’ (emphasis added). Cuban President Miguel Diaz-Canel additionally said that ‘Cuba will defend itself with willpower and firmness towards any terrorist and mercenary aggression that seeks to have an effect on its sovereignty and nationwide stability’ (emphasis added). Whereas not particularly speaking when it comes to the actions of FL7726SH constituting an ‘armed assault’ for the needs of Article 51 of the UN Constitution (states not often do), their depiction as an ‘aggression’ towards the Cuban state appeared to sound relatively as if it have been speaking when it comes to performing upon the proper of self-defence.

There are some distinct similarities between these two rights of safety, the proper to stop passage which isn’t harmless, and the proper to self-defence. First, each apply to acts towards a state inside its territorial seas, which means that each have been probably relevant on this incident. Secondly, each rights apply to the acts of each state and non-state actors. Within the context of the Article 25 ‘obligatory steps’, the taking of those relies on the enforcement jurisdiction of the coastal state inside its territorial seas. State actors usually have immunity from the enforcement jurisdiction of different states, but Article 32 of UNCLOS gives that immunities on this context are topic to the ‘exceptions as are contained in subsection A and in articles 30 and 31’ of UNCLOS. Each the prohibition of non-innocent passage and the rights of safety of the coastal state in response to such passage are certainly positioned inside subsection A which incorporates the ‘guidelines relevant to all ships’ (emphasis added). Equally, though not a view fully free from controversy, it’s arguably the bulk view right this moment that each state and non-state actors (performing independently of state involvement) are capable of perpetrate armed assaults for the needs of the proper of self-defence (see e.g. right here at p. 264).

Nevertheless, there are additionally some notable distinctions between the 2 rights which probably make the Cuban statements above related. On the one hand, the rights of safety supplied beneath UNCLOS are broader than these supplied within the type of the proper of self-defence, in that coastal steps are permitted to take undefined ‘obligatory steps’ in response to a spread of non-innocent actions (see Article 19(2)(a)-(l), UNCLOS) (though the resort to any forcible measures would have to be a final resort and never transcend what is affordable and obligatory within the circumstances (see M/V Saiga (no. 2), at para. 155)), whereas self-defence is proscribed to obligatory and proportionate responses particularly to ‘armed assaults’. On this respect, whereas the actions of FL7726SH as set out above arguably constituted non-innocent passage justifying the taking of forcible obligatory steps, the dimensions and results of the alternate of fireplace may appear to position the incident inside the realms of constituting a so-called ‘mere frontier incident’ relatively than a full-fledged ‘armed assault’ for the needs of the proper of self-defence (as described by the ICJ within the Nicaragua case, at para. 195, regardless of some disagreement with the Court docket on the existence of such a distinction, see e.g. right here at pp. 277-286 and right here at p. 210).

However, nonetheless, the rights of safety supplied inside UNCLOS are clearly narrower and extra restrictive than these supplied within the type of the proper of self-defence. For instance, as the mandatory steps permitted in Article 25 are primarily based upon the regulation enforcement jurisdiction of the state inside its territorial seas they’re due to this fact restricted to the taking of any steps inside this maritime zone. Whether or not or not Cuba had claimed U.S. involvement, it might not have been capable of lengthen any obligatory steps to the territory of the U.S. The best of self-defence, then again, exists for the very goal of exceptionally excusing or justifying a forcible violation of state sovereignty, together with that of a state’s territorial integrity.

It was on this respect {that a} notable facet of Cuba’s justification was that its rights of safety have been invoked ‘[i]n the face of present challenges’, one thing which is perhaps seen as alluding to the present broader tensions between it and the U.S. Extra particularly, the Deputy Minister of Overseas Affairs of Cuba contextualized this occasion inside the historic dispute between the 2 states, stating that ‘[t]his will not be an remoted act’ and recalling that Cuba ‘has been the sufferer of aggressions and numerous terrorist acts for greater than 60 years’ emanating from U.S. territory. Lately, he mentioned, the Cuban authorities have denounced the rise in these violent plans and the ‘feeling of impunity that prevails within the organizers and executors within the face of the inaction’ of the authorities of that nation, clearly laying blame on the U.S. for permitting such teams to function freely.

Consequently, whereas Cuba was arguably performing beneath the proper of safety inside Article 25 in the course of the 25 February incident, it’s not past the realms of risk that these claims might be used to put the bottom for both direct attribution of the collected ‘aggressions’ to the U.S. or, within the different, for Cuba to make some sort of ‘unable or unwilling’ self-defence argument towards the U.S. with the FL7726SH incident forming the latest a part of it. 

Conclusion

This incident involving FL7726SH reminds us, as if one have been wanted, of the necessity for readability within the articulation by states of the actions of others and their responses to them. But, it additionally extra broadly highlights the shortage of readability concerning the connection and distinction between the regulation of the ocean and jus advert bellum frameworks and the conduct that falls, or probably may fall, beneath them. As mentioned on this submit, this subject turns into necessary given the breadth and scope of permissible responses that every probably entail. Whereas students have beforehand famous this subject and, in response, known as for larger readability (see e.g. right here), the more and more tense geopolitical state of affairs in several geographical areas and maritime zones signifies that absolutely understanding the excellence and relationship between these frameworks is extra obligatory now than ever.