Two not mutually exclusive categories.
Barack Obama, at the time a high ranking U.S. official holding an elective office called “president” gave Ukraine security guarantees in return for surrendering their nuclear weapons. Russia and the United Kingdom made similar promises.
Obama gave guarantees that he no way or intention of keeping. They should have known better.
“Barack Obama, at the time a high ranking U.S. official holding an elective office called “president” gave Ukraine security guarantees in return for surrendering their nuclear weapons. Russia and the United Kingdom made similar promises.”
You have your presidents wrong: It was Bill Clinton, not Barack Obama.