One Of Ukraine’s Best Brigades Rolls Into Avdiivka. Russian troops reportedly cut across the main paved road into Avdiivka overnight on Tuesday. In braving Ukrainian mortar fire and drones and advancing a few hundred yards south of their previous positions in the northern outskirts of Avdiivka, the Russian 2nd and 41st Combined Arms Armies have blocked one of perhaps three supply lines feeding the Ukrainian garrison in Avdiivka, an urban stronghold five miles northwest of Russian-occupied Donetsk in eastern Ukraine.