No arguments. Names.
The US intervened to remove nuclear weapons.
They promised to protect Ukraine because of such massive balance shifting intervention.
911 was the anti neocon fantasy.
Baloney.
Both the U.S. and the Soviet Union were signatories to the 1968 Nuclear Non-Proliferation Treaty. With the breakup of the Soviet Union, either the U.S. or Russia would have violated the terms of that agreement if they recognized an independent Ukraine without ensuring that it had no nuclear arms. Ukraine had no nuclear arsenal. The 1994 agreement involved the removal of former Soviet weapons from Ukraine.
It would be like the U.S. allowing Florida to establish itself as an independent country without ensuring that all the Navy ships in Jacksonville were removed as a condition of the agreement.