money. US spent on Ukraine 113 billions in 2022-2023. US military budget - $842 billion in year 2024. so 1/8 for destroying russia military capabilities. current estimate - russia lost 60% of their military forces.
when US give money to ukraine it is not give money. in fact US give ukraine equipment, and money goes to US military-industrial complex to replenish reserves. sometimes US give Ukraine weapons that have already been decommissioned.
all I said you can find in public sources.