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ISW: Ukraine advancing past final Russian defensive line in western Zaporizhzhia Oblast
(kyivindependent.com)
final Russian defensive line
The headline kind of implies that they're in the open now.
Looking at both ISW's and deepstatemap.live's map of Russian fortifications, I think that there is one more trench from Verbove to Pshenychne.
After that, there are weaker, somewhat-discontiguous defenses that I believe were described as being for staging and command that run north of Romanivske.