Zelensky says visited troops fighting on Kharkiv front

President Volodymyr Zelensky said Monday that he had visited Ukrainian troops holding the line in the Kharkiv region bordering Russia and discussed how drones were used in fighting.

"Our warriors in this sector are reporting the participation of mercenaries from China, Tajikistan, Uzbekistan, Pakistan, and African countries in the war. We will respond," Zelensky added in a social media post.