"Today, pursuant to a delegation of authority from the President, I am authorizing our 17th drawdown since August 2021 of up to $550 million in arms and equipment from U.S. Department of Defense (DoD) inventories for Ukraine’s self-defense. Today’s announcement includes more ammunition for the High Mobility Artillery Rocket Systems (HIMARS) and 155mm artillery systems that Ukraine’s forces are using so effectively on the battlefield to defend their country. This drawdown will bring total U.S. military assistance to Ukraine to approximately $8.7 billion since the beginning of this Administration."

https://www.state.gov/biden-harris-administration-announces-550-million-in-new-u-s-military-assistance-for-ukraine/