You may not like it, but the law is the law.
The signed strategic partnership here below is perfectly legit. It has been heavily relied upon, non-stop, in every day polices since 2008.
U.S. Ukraine Charter on Strategic Partnership / 2008 - signed by the Bush White House
https://ua.usembassy.gov/our-relationship/u-s-ukraine-charter-strategic-partnership/
NOTE! :
And here is the NEW VERSION signed in November 2021!
It replaces the 2008 version. It’s now fully up to date.
https://www.state.gov/u-s-ukraine-charter-on-strategic-partnership/