Russian forces have conducted infiltration operations and assault attempts toward Kozacha Lopan, a border settlement in Kharkiv Oblast roughly 2 km from the international boundary, with Ukrainian reports confirming enemy presence inside the village and ongoing fighting on its northern outskirts as of late June 2026. Small Russian assault groups have consolidated limited gains in nearby hamlets such as Hraniv and Veterynarne over preceding months, employing tactics that avoid heavy equipment in favor of infantry probes, FPV drone strikes, and civilian-disguised movements. Ukrainian Joint Forces have responded by reinforcing positions, constructing additional fortifications, conducting counter-sabotage operations, and targeting infiltrators with drones, while local authorities note that over 100 civilians remain in the settlement. These developments form part of broader Russian efforts along the northern Kharkiv front to expand footholds and create pressure toward larger population centers, though subsequent assessments through early September indicate no confirmed major breakthrough at this specific location amid continued Ukrainian defensive actions and refutations of Russian territorial claims elsewhere in the sector.