Volodymyr Zelensky visited Kupyansk, a frontline town, after Ukrainian forces successfully regained control of parts of the city, directly contradicting earlier Russian claims of full capture.The Ukrainian military's counteroffensive encircled hundreds of Russian troops and disrupted supply lines, with Zelensky emphasizing that battlefield successes are crucial for strengthening Ukraine's diplomatic position.Ongoing peace negotiations involve Ukraine, Europe, the US, and Russia, with land concessions in the Donbas region and control of the Zaporizhzhia nuclear plant remaining key sticking points.