US military personnel stand by a M142 High Mobility Artillery Rocket System (HIMARS) during Saudi Arabias first World Defense Show, north of the capital Riyadh, on March 6, 2022.US military personnel stand by a M142 High Mobility Artillery Rocket System (HIMARS) during Saudi Arabias first World Defense Show, north of the capital Riyadh, on March 6, 2022.

The 15th security assistance package will be sent to Ukraine by the Biden administration.

The $400 million weapons package was coordinated with Ukrainian officials and is tailored to the Russian assault in eastern Ukraine, according to a senior U.S. defense official.

Ukrainian military wish lists include howitzers and High Mobility Artillery Rocket Systems.

The official said that the latest security package will include four more HIMARS, bringing the total number to 12.

The missiles are designed to be shot from a mobile truck. The official said that the U.S. troops will continue to teach the Ukrainians how to use the platform outside the country.

US M142 High Mobility Artillery Rocket System (HIMARS) launchers fire salvoes during the “African Lion” military exercise in the Grier Labouihi region in southeastern Morocco on June 9, 2021.

The official said that they will keep training them because they see this as a sustained battle.

The official wouldn't say how many Ukrainian troops have finished training on the platform.

The U.S. has a lot of power in its fight against Russia.

The person said that the new security assistance will include systems already deployed to the fight as well as new capabilities.

The official said that the latest round of weapons will include additional rounds for howitzers, as well as additional bullets for the howitzers.

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