The fighting is reminiscent of a battle for another eastern city, Bakhmut, which fell to Russian forces last May after months of brutal urban combat. Since Moscow launched its renewed offensive around Avdiivka in October, Ukraine's top general and Western military experts have made downbeat assessments of Ukraine's ability to break Russian lines. Located just north of the Russian-occupied city of Donetsk in the industrial Donbas region, Avdiivka hosts deeply entrenched Ukrainian defences. Pushing Ukrainian forces out of Avdiivka would be seen as enlarging the amount of territory Russia controls and making Donetsk city safer. Seizing Avdiivka could boost Russian morale and deal a psychological blow to Ukrainian forces, which have made only incremental gains in a counteroffensive launched in June.

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Persons: Nuzhnenko, Ukraine's, Russia's, Andrei Gurulyov, Semyon Pegov, Vladimir Putin, Wagner, Yevgeny Prigozhin, Mykola Bielieskov, Bielieskov, Dan Peleschuk, Andrew Osborn, Mike Collett, White Organizations: Ukraine's National Guard Omega, Radio Free, Radio Liberty, REUTERS Acquire, Mechanized Brigade, Avdiivka, National Institute for Strategic Studies, Kyiv, Timothy Heritage, Thomson Locations: Avdiivka, Ukraine, Donetsk region, Radio Free Europe, Ukrainian, Bakhmut, Russian, Moscow, Kyiv, Soviet, Donetsk, Luhansk, Russia