@Nazareno As a Slavic language native speaker I think Western translators made quite a mistake with #SanitaryZone I'd translated it as Sanitized Zone, much clearer meaning - nazis removed, weaponry removed and outside ones cant break through...
Map is also questionable, those are not defendable borders. Obvious one is Dnipro river, strategically beyond it only strongly pro-Russian areas as Odessa and choice river boundaries at the confluence with Dnipro river (any Ukr access to the sea?)

The Russian President, #VladimirPutin, has outlined a clear task for the future of forming a "#SanitaryZone" in Ukraine, depending on the range of weapons being transferred to it, to protect the citizens of our country from shelling by the #AFU

Twitter/@armscontrol_rus