Source: 6TV.ru
Photographed in early December 2025, a Russian T-80BVM main battle tank shows off its new anti-drone protection which had been fitted to it by a Russian repair battalion. This type of defense has become known as “hedgehog” armor as it has a resemblance to the spines found on the upper bodies of hedgehogs. Personally, I prefer “toilet brush” armor. When first encountered in smartphone videos in 2025, the rolling “bushes” garnered a good bit of ridicule. Except, that ridicule has since dwindled. Why? That is because the “hedgehog” armor, despite how crazy it looks, works and works well. While mostly seen on Russian tanks, “hedgehog” armor is being applied to other tracked vehicles and even civilian vehicles which Russians utilize. Even some Ukrainian vehicles are adopting the defense.
So, exactly what makes up “hedgehog” armor? Plain steel cabling. Steel cabling is made up of multiple strands of steel wire wrapped around a fiber or steel core. To make one section of “hedgehog” armor, all that is involved is taking a length of steel cable and unraveling the strands then arranging them into a “bush” so that the strands point outwards in multiple directions. The end of the cable is then welded or bolted down to the vehicle hull. Add more and more sections and the result is what is shown in the photograph. The sections overlap, creating a formidable defense against drones. From this side view of the T-80BVM, there are very few gaps a drone can target and those we do see, there are explosive reactive armor (ERA) blocks visible which could defeat a FPV drone. The repair battalion encompassed the turret with a metal frame to which the sections are secured. Soft ERA bags can be seen (the light gray colored objects) above the tank's standard turret ERA.
From a FPV drone operator's point of view, trying to tackle a “hedgehog” equipped tank is a serious problem. For one, the cameras used by FPV drones are not high quality. This is intentional as FPV drones are expendable and thus costs need to be kept low. Anyone who has viewed FPV drone attack videos knows how grainy the feed are. Now, couple the poor video quality and then add the need for the operator to find a gap in the “hedgehog” armor and exploit it. Any mistake and the FPV drone can get impaled on a strand, a strand can catch a part of the drone and damage it, or a strand can set off the FPV drone's warhead by striking it. If the target is actively moving, well, that exploitation chance diminishes even more. There are videos on social media which show Russian “hedgehog” tanks with Ukrainian FPV drones stuck in the strands. These tanks were ultimately defeated but it took a large number of FPV drones to accomplish the task where without the “hedgehog” armor, one or two drones would have been enough.
“Hedgehog” armor is not without its disadvantages. For one, larger loitering munitions, the speed of attack makes the bendable strands less effective and sheer velocity can win the day. For example, the Russian ZALA Lancet's terminal attack speed is a little over 186 miles per hour. By comparison, the typical FPV drone musters only 62 miles per hour. Another problem is the weight the additional anti-drone defenses add to the vehicle. This added weight, which the vehicle's engine and drive train is not designed to cope with, leads to mechanical failures. In a Soldier of Fortune Magazine article from December 24, 2025 by A.R. Fomenko, he cites a Russian tank driver whose tank has a full “hedgehog” armor set up. The driver said that the added weight crippled his tank and that it was rare his tank made 6 miles before something in the drive train broke. When available, some “hedgehog” armor equipped tanks are moved by tank transporters to get them closer to the front before the tank has to drive on its own.
For further information on the T-80BVM, visit:
https://photosofmilitaryhistory.blogspot.com/2025/01/russo-ukrainian-war-t-80bvm-obr-2022.html
