TALLINN, Estonia - NATO Secretary-General Jens Stoltenberg says Russian President Vladimir Putin is “preparing for more war" and that he wants a Europe in which Russia “can dictate what neighbors do."

Ukrainian President Volodymyr Zelenskyy attends a commemorative event on the occasion of the Russia Ukraine war one year anniversary, in Kyiv, Ukraine, Friday, Feb. 24, 2023. (Ukrainian Presidential Press Office via AP)

Von der Leyen said Putin has failed to achieve any of his strategic goals and that Russia is becoming increasingly isolated, citing Thursday's U.N. General Assembly vote approving a nonbinding resolution that calls for Russia to end hostilities in Ukraine and withdraw its forces.

Stoltenberg also said that he has invited Ukrainian President Volodymyr Zelenskyy to attend a NATO summit in Lithuania in July, expressing hope that the Ukrainian leader can attend in person.

NATO will hold a summit in Vilnius, the capital of Lithuania, Jul. 11-13.