Invisible Drones: How Fibre-Optic FPVs Are Redefining Asymmetric Warfare

CURRENT AFFAIRS | 24 JUNE 2026

Fibre-optic first-person-view drones — linked to their operators by thin glass cables instead of radio — are redefining asymmetric warfare from Ukraine to Lebanon. Because they emit no radio frequency, they cannot be jammed, defeating the standard electronic-warfare defences that have long protected forces against drones. After its four-day conflict with Pakistan, India is now developing its own counter-drone and loitering-munition capabilities, making this a story about both technology and national security doctrine.

Why fibre-optic FPVs are so hard to stop

Conventional drones rely on radio links that can be detected and jammed — a ‘soft-kill’ defence that floods or spoofs the control frequency until the drone loses its operator. A fibre-optic FPV breaks this model entirely: it carries no radio signal at all. Control commands and high-definition video travel down a thin glass cable that can stretch 20 to 30 km, paying out behind the drone as it flies.

With no radio frequency to detect or jam, the entire electronic-warfare toolkit is rendered useless, and only ‘hard-kill’ physical interception works reliably. Defence experts such as Group Captain R.K. Narang of the Manohar Parrikar Institute have flagged exactly this challenge, noting how a cheap, low-tech tweak — replacing radio with glass fibre — can defeat expensive, sophisticated defences.

The trade-offs are real, of course. A trailing cable limits manoeuvrability, can snag on terrain and ties the drone to a fixed line of retreat. Yet on contested fronts where jamming is dense, operators have judged that immunity to electronic warfare outweighs these drawbacks — a calculation that has spread the technology rapidly across active battlefields.

Loitering munitions and asymmetric warfare

These drones sit within the wider family of loitering munitions — sometimes called ‘kamikaze’ drones — that hover over a battlefield, search for a target and then dive to strike, destroying themselves in the process. Their low cost and high precision make them a textbook tool of asymmetric or hybrid warfare, allowing smaller or non-state forces to inflict serious damage on far better-equipped opponents.

The battlefields of Ukraine-Russia and Hezbollah-Israel in Lebanon have become live laboratories for the technology, where the cost asymmetry is stark: a drone worth a few hundred dollars can disable armour or vehicles worth millions. This inversion of the cost equation is precisely what makes asymmetric warfare so destabilising for conventional militaries.

It also lowers the barrier to entry. Because fibre-optic FPVs use widely available parts and require no exotic manufacturing base, even resource-constrained forces can field them in numbers. Mass and precision, once a trade-off, now arrive together — and that combination forces established militaries to rethink doctrines built for a world of expensive, jammable platforms.

India’s response

The threat is hard to neutralise. Options being explored include kinetic ‘hit-to-kill’ interception, in which a projectile physically destroys the incoming drone, and artificial-intelligence-based detection that can spot and track the small, low-flying craft. Each approach has limits, and no single defence yet offers a complete answer.

India, drawing lessons from its recent four-day conflict, has begun building counter-drone capability in earnest. The Army is initiating procurement of three target systems for aerial warfare — part of a broader defence self-reliance push that treats drones and counter-drone technology as central to future battlefields rather than a niche add-on.

Why this reshapes security doctrine

The rise of the unjammable drone illustrates a broader truth about modern conflict: technological advantage is no longer the exclusive preserve of large, wealthy militaries. When a cheap, easily produced weapon can defeat expensive defences, the balance of power tilts toward whoever can innovate and adapt fastest. This is the essence of hybrid warfare, where conventional and unconventional methods blend on the same battlefield.

For India, the response cannot be purely defensive. Building indigenous drones, loitering munitions and counter-drone systems is now a strategic necessity, tying battlefield technology to the wider goal of self-reliance in defence. For the aspirant, the story connects a vivid piece of current affairs to enduring themes — deterrence, asymmetry and the relationship between technology and national security.

The rise of the unjammable drone is a vivid, current example of how technology reshapes security doctrine. It folds together several testable threads: the difference between FPV drones and loitering munitions, the logic of asymmetric warfare, the science of electronic warfare, and India’s post-conflict drive toward counter-drone self-reliance. A single passage can probe any of these.

For CLAT aspirants, the single sharpest distinction to carry into the exam is soft-kill versus hard-kill: jamming defeats radio-linked drones, but only physical interception stops a fibre-optic FPV. That contrast is the heart of the passage and the likeliest hook for a question, so let it anchor your reading of the whole story.