US and Germany reportedly decided to send tanks to Ukraine after few months of hesitations in finalizing it, reports BBC.
Kyiv hopes this decision to be a determinant-factor in changing the fate of battle against Russia.
US President Joe Biden's administration is expected to announce plans to send at least 30 M1 Abrams tanks.
At the same time, German Chancellor Olaf Scholz has also reportedly decided to send at least 14 Leopard 2 tanks. He is set to speak in parliament on Wednesday morning.
Russia's ambassador to the US said the news was "another blatant provocation".
And the Kremlin spokesman said Germany's reported decision would "bring nothing good" and leave "a lasting mark" on relations with Russia.
Ukrainian officials say they are urgently in need of heavier weapons, and say sufficient battle tanks could help Kyiv's forces seize back territory from the Russians.
But until now, the US and Germany have resisted internal and external pressure to send their tanks to Ukraine.
Washington has cited the extensive training and maintenance required for the high-tech Abrams.
Germans have endured months of painful political debate amid concerns that sending tanks would escalate the conflict and make Nato a direct party to the war with Russia.
Bd-pratidin English/Lutful Hoque