The waters between neighbours are rarely empty — fishing fleets, cargo lanes and the occasional dispute all share the same horizon.

A round of agreements this month aims to make that shared space easier to police, with joint patrols and faster information-sharing at its core.

Analysts read the moves as pragmatic rather than dramatic: small states pooling limited resources to watch a very large sea.

The test will be implementation, where good intentions often run aground on budgets and competing priorities.