Russia's large overnight strike on Ukrainian energy facilities showed ‍that ‍agreements on air defense made ⁠with U.S. President Donald Trump ​in Davos this week must be "fully ‍implemented," President Volodymyr Zelenskyy ⁠said on Saturday.

Zelenskyy and Trump met at the ⁠World ​Economic ⁠Forum on Thursday and ‍discussed air defense support ‌for Ukraine, although afterwards neither leader ⁠specified ​what ‍was agreed.