Ukrainian president Volodymyr Zelenskiy said it will be “absurd” if Ukraine is not invited to become a Nato member and that uncertaintly over its membership is motivation for Russia to “continue its terror”.

On Twitter, Zelenskiy said: “We value our allies. We value our shared security. And we always appreciate an open conversation. Ukraine will be represented at the Nato summit in Vilnius. Because it is about respect.

“But Ukraine also deserves respect. Now, on the way to Vilnius, we received signals that certain wording is being discussed without Ukraine.

“And I would like to emphasise that this wording is about the invitation to become Nato member, not about Ukraine’s membership.

“It’s unprecedented and absurd when time frame is not set neither for the invitation nor for Ukraine’s membership. While at the same time vague wording about “conditions” is added even for inviting Ukraine.

“It seems there is no readiness neither to invite Ukraine to Nato nor to make it a member of the Alliance.

“This means that a window of opportunity is being left to bargain Ukraine’s membership in Nato in negotiations with Russia. And for Russia, this means motivation to continue its terror.

“Uncertainty is weakness. And I will openly discuss this at the summit.”