"U.S. Security Assistance to Ukraine" https://crsreports.congress.gov/product/pdf/IF/IF12040
"From 2014, when Russia first invaded Ukraine, through January25, 2023, the United States has committed more than $29.9billion in security assistance “to help Ukraine preserve its territorial integrity, secure itsborders, and improve interoperability with NATO.”
Of this amount, the Biden Administrationhascommitted more than $27.1billioninsecurity assistance since the start of the 2022 war."
It takes a lot of money to buy a country.
... and to cover a lot of crimes (destroy evidence) by doing so.