The U.S. will send an additional $300 million in military aid package to Ukraine, Biden administration officials said Tuesday, after a months-long stall in aid to Kyiv due to a block initiated by Republican leaders in Congress. 

Two Biden officials, who spoke on condition of anonymity, told Reuters a formal announcement is expected to follow.

One of the officials revealed that the military funding for this package came from refunded credits to the Pentagon for recent purchases.

Using the returned credit allows for an opportunity to send urgent aid from existing stocks as the Biden administration waits for supplemental additions to be passed by lawmakers.

To replenish stocks sent to Ukraine, the US army has been making large purchases of munitions and vehicles.

The last drawdown was in December 2023, when funds for replenishing stocks fell to zero, according to Reuters.

The Biden administration has long backed military aid to Ukraine since Russia's full-scale invasion began in 2022. Former President Donald Trump and expected Republican opponent in the Nov. 5 US election has more of an isolationist position regarding the Russia-Ukraine war.

Trump's ally, Republican House of Representatives Speaker Mike Johnson, has objected to a call a vote on a bill that would provide $60 billion in more aid for Ukraine.

The measure had previously passed the Democratic-run Senate, however, Republicans and Democrats in the House claim it would pass if the chamber's Republican leaders would allow the vote.

Several US intelligence agency leaders continue to put pressure on members of the House of Representatives to move along additional assistance for Ukraine, alleging it would not only boost Kyiv as it fights Russia but also serve as a means of discouragement against Chinese aggression.

The new military aid package proposed by the United States could be worth as much as $400 million.

Ukraine President Volodymyr Zelenskiy said on Monday that the situation along the front of the country's war with Russia was the best in three months, with Moscow's troops no longer advancing after their capture last month of the eastern city of Avdiivka.

In an interview with France's BFM television, Zelensky says Ukraine has improved its position on the battleground despite the shortage of weaponry but also hinted that the situation could easily change if new supplies were not on the horizon.

A top military commander disclosed that Ukrainian troops were forced to leave multiple settlements neighboring Avdiivka due to Russia's relentless offensive.

Denmark is said to be providing a new military aid package to Ukraine, including Caesar artillery systems and ammunition worth around 2.3 billion Danish crowns ($336.6 million), the Danish Defense Ministry said in a statement.

A 5 billion-euro ($5.46 billion) top-up to a fund used to finance military shipments to Ukraine is currently under discussion among countries in the European Union, reported the Financial Times, citing four officials who were briefed on deliberations.