They're layered with treacherous obstacles like mines, ditches, and anti-tank dragons teeth.
Close up of Russian trenches, fortifications, and tank obstacles in the Kherson region on November 15, 2022.
Dragons teeth obstacles can be seen in the three rows of gray dots before the trenches and fortified positions.
Nazi Germany's defenses, like the Siegfried Line built to defend its west, also featured dragon's teeth, machine-gun pillboxes, razor wire and mines.
As Insider's Jake Epstein has reported, Russian positions may be vulnerable to attack from assaults that cross open terrain and steer clear of roads.
Persons:
—, Jack Watling, Nick Reynolds, Brady Africk, Siegfried, Jake Epstein
Organizations:
Service, Technologies, UK's Royal United Services Institute, American Enterprise Institute, US
Locations:
Russian, Ukraine, Kherson, Dnipro, Nazi