President Biden notified Ukrainian President Volodymyr Zelenskyy Wednesday that the United States is authorizing an additional $800 million in weapons, ammunition and other security assistance to the country as it fights to defend itself against Russia’s multi-front war.

The president spoke with Zelenskyy Wednesday morning to share the Biden administration’s move to provide additional security assistance.

“The Ukrainian military has used the weapons we are providing to devastating effect,” Biden said in a statement Wednesday. “As Russia prepares to intensify its attack in the Donbas region, the United States will continue to provide Ukraine with the capabilities to defend itself.”

The president said the new package of assistance will contain “many of the highly effective weapons systems we have already provided,” in addition to “new capabilities tailored to the wider assault we expect Russia to launch in eastern Ukraine.”