"But Americans worried only about the cost of helping Ukraine are thinking about the issue in the wrong way. They should be worried about the cost of not helping Ukraine.

Right now, by providing aid to Kyiv, the United States is preventing Russia from directly menacing eastern and central Europe, which would doubtless consume even more U.S. resources. Washington may, in fact, be deterring a direct war between NATO and Moscow, one in which U.S. forces would have to fight."

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"According to our calculations, defeat in Ukraine would require the United States to spend $808 billion more on defense over the next five years than it has budgeted.

Since 2022, by contrast, Congress has appropriated $112 billion to the Defense Department to assist Kyiv. T

hat means the aid provided to Ukraine through the Pentagon is less than 14 percent of what it would cost Washington to defend Europe against a victorious Russia. (That $112 billion is also mostly spent at home, on domestic weapons production.)

Put another way, allowing Russia to defeat Ukraine would cost the United States about seven times more than preventing a Russian victory. Aiding Ukraine, then, is clearly the right financial decision."

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Not to mention that aiding Ukraine is also clearly the right moral and geopolitical decision.