By forcing Russian troops back behind the Zherebets river and blunting their northern approach, Ukraine’s “invisible” Lyman offensive may prove as pivotal to Donbas as earlier breakthroughs were to the defence of Kharkiv.

By forcing Russian troops back behind the Zherebets river and blunting their northern approach, Ukraine’s “invisible” Lyman offensive may prove as pivotal to Donbas as earlier…

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