The new $625 million package is being provided through the presidential drawdown authority, which allows Biden to send arms to Ukraine directly from US military stockpiles. A stopgap funding bill President Biden signed into law last week included $3.7 billion for this authority. It also included $12.3 billion for other military and economic aid for Ukraine, bringing total US spending on the war to about $67.5 billion, a number that’s higher than Russia’s entire military budget for 2021.
The HIMARS that the US has been sending to Ukraine are equipped with missiles that have a range of about 50 miles. But that can change, and Kyiv is requesting Army Tactical Missile Systems, which have a range of 190 miles, but Washington has been hesitant to send the longer-range missiles. Russia has warned that providing such arms would cross a “red line.”
In the U.S. weapons industry, the normal production level for artillery rounds for the 155 millimeter howitzer — a long-range heavy artillery weapon currently used on the battlefields of Ukraine — is about 30,000 rounds per year in peacetime.
The Ukrainian soldiers fighting invading Russian forces go through that amount in roughly two weeks.
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Is the U.S. ability to defend itself at risk?
The short answer: no.
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The U.S. has essentially run out of the 155 mm howitzers [M777?] to give to Ukraine; to send any more, it would have to dip into its own stocks reserved for U.S. military units that use them for training and readiness. But that’s a no-go for the Pentagon, military analysts say, meaning the supplies reserved for U.S. operations are highly unlikely to be affected.
Ms. Cat’s Chronicles 
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