20.Speaking on national TV, Sergeant Volodymyr Dehtiarov, spokesperson for the Khartiia Brigade of the National Guard of Ukraine, said “dozens of units of robotic and unmanned equipment” supported by surveillance drones were used in the assault near the village of Lyptsi, north of Kharkiv.Dehtiarov said the drones included ground systems equipped with machine guns, and kamikaze FPV drones.He did not specify when the attack took place.Commenting on the reports, the Institute for the Study of War (ISW) said the attack highlighted the difference in attitude towards front line troops shown by Moscow and Kyiv."Ukrainian officials have repeatedly highlighted Ukraine's efforts to utilise technological innovations and asymmetric strike capabilities to offset Ukraine's manpower limitations in contrast with Russia's willingness to accept unsustainable casualty rates for marginal territorial gains," the ISW said.Russian military losses in its full-scale invasion of Ukraine have exceeded 750,000 Russian soldiers, and are expected to surpass 1 million Russian troops within six months, U.K.