“for the Soviet Union it is important to have guarantees,” then-US Secretary of State James Baker told Mikhail Gorbachev in 1990.”
“for the Soviet Union” - which no longer exists.
Russia was supposed to have reformed after the end of the Soviet Union, and no longer be a hostile enemy of NATO, looking to conquer and subjugate its neighbors, but rather a responsible neighbor, like normal countries are.
But Russia did not reform, and its aggressiveness has grown, driving all those countries to seek protection from it within NATO. Russia attacked Chechnya. Russia attacked Georgia. Russia attacked the Ukraine in 2014.
Russia chose to attack. Repeatedly.
Our CIA, at the direction of v/p Joe Potato, deposed democratically elected Viktor Yanukovych and replaced him with American puppet, and global thief, George Washington Carver Zelenskyyy.