It comes as Putin orders his armed forces to recruit 170,000 more soldiers.
Meanwhile, the Ukraine war has caused hundreds of thousands of casualties.
Russian president said: "We should think about how to stop this tragedy."
Ukrainians remember it as the "Revolution of Dignity".
The virtual summit is set to be held on Wednesday.
The commander in chief of Ukraine’s Armed Forces had previously suggested a significant breakthrough in the fight against Russia is unlikely.
The Ukrainian president detailed the exact amount of time he would need to debunk a Trump boast.
Troops face threats if they try to retreat from Ukrainian attacks, the White House claims.
It comes after speculation that the Israel-Hamas war would work to Russia's advantage.
All kinds of claims have been running rampant on social media.