The situation in the Donbas region is becoming increasingly dire for the Russian military. Over the past hours, Ukrainian forces have breached Russian defenses around the village of Urozhaine. In their retreat, the Russian units in the area suffered extremely heavy casualties.
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In a couple of videos (link in the original) published by the Ukrainian Ministry of Defense, one can see the columns of dismounted Russian troops running away and getting obliterated by artillery fire. Besides conventional rounds, the Ukrainians fired cluster munitions that are designed for exactly these situations — they have a devastating effect on concentrations of troops.