Russia Deploys Floating Sentry Positions Against Drone Attacks
Russian forces have begun deploying floating fortified sentry positions in waters where Ukrainian uncrewed surface vessels have operated, in the latest of a series of improvised measures intended to protect infrastructure and shipping against attack by small, fast, remotely operated craft. Images circulating on Russian social media show a self-contained armoured structure, designated as a floating post, moored in open water.
The concept is old and the application is new. A fortified position placed on the approach to a defended area, manned and armed, is a technique as old as fortification itself, and putting one on a float extends it to water where no land is available. What makes it notable is what it is defending against: not warships or aircraft, but craft that cost a fraction of what a missile costs and can be produced in quantity.
That asymmetry is the whole problem. A surface drone carrying a few hundred kilograms of explosive can disable or sink a vessel worth many hundreds of millions, and the defender must intercept every one while the attacker needs only occasional success. Missiles and guided weapons are far too expensive to expend on targets this cheap, which pushes defenders towards automatic cannon, machine guns and physical barriers, all of which require someone close enough to use them.
Placing crews in isolated floating positions to provide that close-in defence is a decision with obvious costs. The occupants are exposed, difficult to relieve or resupply in poor weather, and stationed precisely where attacks are expected. It is the maritime equivalent of a forward outpost, and the reasoning is the same: the defence has to begin somewhere further out than the thing being defended.
The wider significance runs well past this conflict. Every navy operating in confined waters is now studying how to protect anchorages, harbour entrances, offshore platforms and moored ships against small uncrewed craft, and none has produced an answer that is both effective and affordable. Nets, booms, barriers, patrol boats and armed sentries are the current state of the art, which is to say that the response to a genuinely novel weapon has so far been a return to techniques that would be recognisable from a century ago.
