Also, according to https://fiscaldata.treasury.gov/americas-finance-guide/feder... and https://www.cfr.org/article/how-much-us-aid-going-ukraine , the amount spent on Ukraine as a percentage of total government spending seems to be around 3%, not taking into account the fact that some of that might have been spent anyway (for example, old munitions that would have otherwise been replaced were sent to Ukraine).