The agreement, not treaty consisted of
Respect Ukrainian independence and sovereignty within its existing borders.
Refrain from the threat or use of force against Ukraine.
Refrain from using economic pressure on Ukraine in order to influence its politics.
Seek United Nations Security Council action if nuclear weapons are used against Ukraine.
Refrain from the use of nuclear arms against Ukraine.
Consult with one another if questions arise regarding these commitments.
Now while it can be argued that America broke the first condition by spending billions inside the Ukraine to destabilize the government leading to the resignation of its democratically elected leader, the only country that the USA promised to ensure the Ukrainians safety from was America.
Full text, https://www.msz.gov.pl/en/p/wi...