In early February 1990, U.S. leaders made the Soviets an offer. According to transcripts of meetings in Moscow on Feb. 9, then-Secretary of State James Baker suggested that in exchange for cooperation on Germany, U.S. could make “iron-clad guarantees” that NATO would not expand “one inch eastward.” Less than a week later, Soviet President Mikhail Gorbachev agreed to begin reunification talks. No formal deal was struck, but from all the evidence, the quid pro quo was clear: Gorbachev acceded to Germany’s western alignment and the U.S. would limit NATO’s expansion.
“No formal deal was struck”
Your damned right. There was no deal.
Besides Russia is a serial violator of every agreement they ever signed.