Ukraine’s President Volodymyr Zelenskiy called on world leaders on Saturday to show solidarity and unity in supporting Israel and condemning the “terrorist attack” by Palestinian Islamist group Hamas.

Prime Minister Benjamin Netanyahu vowed “mighty vengeance” after a surprise assault by Hamas killed more than 200 people in the deadliest day of violence in Israel in half a century.

Zelenskiy, whose army has been fighting a war Russia launched against it 19 months ago, said that Israel - just like Ukraine - has “every right” to protect itself.

“Let the value of human life and the intolerance of terror be the principles that will finally unite the whole world,” Zelenskiy said in his nightly video address.