Possibly U.S. surface-to-air missiles to be supplied to Ukraine.

Over the five years of war in Donbas, Unian agency reports, the United States has provided Ukraine with hundreds of millions of dollars in military equipment: night-vision goggles, flak jackets, vehicles, counter-battery radars, FGM-148 Javelin antitank missiles, etc.

Firing of an FGM-148 Javelin antitank missile (Picture source: Ukrainian MoD)

The U.S. Congress seems to be adapting the legislation in a way that would authorize supplying Kyiv with portable surface-to-air missiles. The effort comes in an amendment being attached to legislation providing funding for the Defense Department; the amendment removes existing language prohibiting the sale of such weapons, which does not mean that the weapons will be supplied right away. Any final decision would have to go through multiple approval processes at various U.S. agencies, including the U.S. Defense Department.