Before the 17th Century, the seas historically played two key roles: as a means of communication or transportation and as a vast reservoir of living and non-living resources. These traditional uses evolved gradually through technological enhancement enabling States to discover and access deep ocean resources. The potential economic viability of the sea aroused extensive scholarly debates on the concept of “freedom” of the seas and led to the gradual carve-out of zones under the authority of coastal States The High Seas became the free zone for both resource exploitation and navigation and negatively, the hub of maritime security threats. The security concerns were discussed extensively at the second session of the International Law Commission (ILC) leading up to the United Nations Conference on the Law of the Sea in 1950. In that Conference, enforcement principles ranged from according nationality to ships, establishing provisions concerning offences like collision, slave trade, piracy and pollution and preserving States’ powers to enforce against their vessels on the High Seas or extend their coastal powers through the rights of approach and pursuit. These were codified in the 1958 Geneva Convention for the High Seas and extended in Part VII of the 1982 UNCLOS. The observance of the security mechanisms enshrined in the UNCLOS across coastal, regional and global levels reveals that Part VII reflects accepted state practice in relation to the High Seas.
The challenging consequence of a collective ocean space is the governance and enforcement difficulty. After the exercise of freedoms – of navigation, overflight, laying cables or pipelines, fishing, scientific research and construction of artificial islands and installations – the equitable enjoyment of the High Seas will depend on some form of governance to control over-exploitation. According to the UNCLOS Treaty negotiators, this governance mechanism would appropriately involve all States but be spearheaded by no State in particular; it would rather be observed on the basis of zones and regions to fulfil the common goal of preserving the marine environment, This understanding birthed “obligatory regionalism” in the UNCLOS as a method of governance on the High Seas. “Obligatory regionalism” is a juxtaposition of the words “obligation” and “regionalism”. Obligations are requirements with which legal subjects are bound to conform; either an act or omission the law renders non-optional. Regionalism, in this case, defines the governance order involving geographically-proximate States. In the UNCLOS, enforcement against offences on the High Seas is organised through regional cooperation among States. The obvious challenge, however, is that the obligation to cooperate for enforcement on the High Seas does not imply an obligation to achieve equal security mechanisms across all regions of the world. The effect of this is stark disparities in State and regional action towards maritime security and this calls for a re-examination of the use of regionalism as the tool for overall global security at sea.
This paper will provide an outlook on the security framework of the UNCLOS and will explore the foundation of the maritime security provisions in the Convention. It examines the adoption of obligatory regionalism for enhancing maritime security in areas beyond national jurisdiction. It will argue that the tool of regionalism retained in UNCLOS is enforced differently across regions based on non-legal factors and creates a gulf in the development of different parts of the sea. The paper will also examine the practical application or domestication of the regional security framework in UNCLOS through key examples of managing illegal fishing, pollution and piracy or armed robbery at sea and rescue of persons. Finally, using the Gulf of Guinea as a point of reference, the paper provides recommendations to effectively enhance regional mechanism including addressing internal security challenges to avoid its spill-over effects to international waters and promoting regional cooperation in related aspects of the regional economy capable of influencing the maritime areas in the region.