I’m not sure if Robotyne has completely been taken by AFU or not, but that’s not part of the “first line of defense”. These are outer/forward defense positions. We aren’t totally sure what portion of Russian defense units are manning these forward positions however, and the RFAF have tried to build up fortification around the area, but its not the first official line, which is maybe where people get confused.
If you look at this image, I’ve labelled the two main lines of the Russian defenses from deepstatemap:
And here I’ve circled in blue, an example of what portion of the Defense in Depth doctrine, Robotyne and areas where AFU has made gains, these parts of the front are equivalent to:
I’m not sure if Robotyne has completely been taken by AFU or not, but that’s not part of the “first line of defense”. These are outer/forward defense positions. We aren’t totally sure what portion of Russian defense units are manning these forward positions however, and the RFAF have tried to build up fortification around the area, but its not the first official line, which is maybe where people get confused.
If you look at this image, I’ve labelled the two main lines of the Russian defenses from deepstatemap:
https://i.imgur.com/MnksZXt.png
And here I’ve circled in blue, an example of what portion of the Defense in Depth doctrine, Robotyne and areas where AFU has made gains, these parts of the front are equivalent to:
https://i.imgur.com/nOSvIJU.png
Source for second image US Fort Moore on Russian Maneuver Defense: https://www.moore.army.mil/armor/eARMOR/content/issues/2021/Spring/2Grau_Bartles21.pdf