The U.S. will send Ukraine nearly $3 billion in military aid, in a massive new package that will for the first time include several dozen Bradley fighting vehicles, U.S. officials said Thursday, in the Biden administration’s latest step to send increasingly lethal and powerful weapons to help Ukraine beat back Russian forces.

European allies also stepped up their weapons commitments. Germany announced it will provide armored personnel carriers and a Patriot missile battery to Ukraine, and France said it will soon hold talks to arrange for the delivery of armored combat vehicles.

All of the announcements, however, fall short of sending heavier battle tanks, which are more complex to use and have a longer-range gun. The Bradley, an armored carrier used to transport troops to combat, is not a tank but is known as a “tank-killer” because of the anti-tank missile it can fire.

The latest U.S. aid — totaling about $2.85 billion and about 50 Bradleys — is the largest in a series of packages of military equipment that the Pentagon has pulled from its stockpiles to send to Ukraine. It is aimed at getting as much to the Ukrainian forces as possible during the winter months, before spring sets in and an expected increase in fighting begins.

An announcement is expected Friday, said the officials, who spoke on condition of anonymity because details of the package have not been publicly announced.

President Joe Biden and German Chancellor Olaf Scholz confirmed in a joint statement Thursday that the U.S. would provide Bradleys to Ukraine while Germany would provide Marder armored personnel carriers. The statement did not give the number of vehicles or the total cost of the aid package.