Grant Shapps, the UK Secretary of State for Defence, has arrived in Kyiv on an official visit.
He has already met with Ukrainian President Volodymyr Zelenskyy. The video was posted on the President's Telegram.
"Thank you for your strong financial, defense, and humanitarian support for Ukraine! Our cooperation in the military sphere significantly expands the capabilities of Ukrainian soldiers on the battlefield," Zelenskyy said.
The president's website added that the interlocutors discussed strengthening Ukraine's air defence, which is especially important ahead of the winter period.
Separately, they discussed the start of negotiations with the UK on a bilateral agreement on security guarantees for Ukraine.
Later, Shapps himself reported on the visit via X.
"I returned to Kyiv this week to ask President Zelenskyy what he needs to win. As Ukraine takes back its territory, the UK's support remains unwavering. We will work tirelessly to unite our partners to help Ukraine defeat Putin's illegal invasion. Glory to Ukraine," he wrote.