"In connection with the leak of secret documents on the eve of the counteroffensive, which is expected in the spring, Washington has begun to reconsider its attitude towards the situation in Ukraine," Ustyun writes.
He noted that US President Joe Biden is under pressure to provide assistance to Kyiv.
According to him, the return of Crimea and Donbass to Ukraine is impossible, as well as the victory of the Armed Forces of Ukraine in the conflict.
Earlier, Pentagon chief Lloyd Austin said that the North Atlantic Alliance has provided Ukraine with military assistance in the amount of $55 billion since the beginning of the conflict.
US Secretary of the Army Christine Wormuth also noted that the fighting in Ukraine showed that Washington underestimated the pace of use of ammunition in armed conflicts.