The structures resemble the metal “X-like” anti-tank obstacles that were positioned along the Normandy beaches by Germans ...

cited posts by Russian nationalist bloggers on Telegram complaining of havoc on roads caused by the spiked "dragon's teeth" anti-tank barriers in Kursk, in southern Russia. The concrete pyramids ...

The concrete anti-tank structures were placed on roads in ... remain—as special equipment is often required to remove the barriers from the roads and nearby fields. As Forbes.com reported ...