There is this thing called diplomacy which is now a very alien word to the West. Yeah Russia had demands prior to the Ukraine war but that is where diplomacy comes in. You cannot get all you want. If America and NATO were serious about peace they would have sat with Russia and talked. But no, they outright rejected Russia's concerns, from what I know. Leaving no room for talks. So you asked me to provide proof saying whether Russia said it would not invade if Ukraine would not be let into NATO - well, this did happen and NATO and America refused to talk any further. Did NATO and America think Russia was fooling around with national security? If they did, they have made a very serious miscalculation with Ukraine's security.
"The demands include a ban on Ukraine entering Nato and a limit to the deployment of troops and weapons to Nato’s eastern flank, in effect returning Nato forces to where they were stationed in 1997, before an eastward expansion."
The Guardian
America and NATO wanted to gobble up all of Europe all the way up to Russia's border and excepted Russia to shut its mouth and take it. It turns out that was not the case. You may not like it but every country has "red lines" and abilities to tolerate certain actions.
I think at one point Russia wanted to be part of NATO?
Interesting Turkish article:
According to the Kremlin, Russia is fighting Ukraine, or Vladimir Putin's words, “Little Russia,” to prevent NATO’s eastern expansion across Eastern Europe. While Kiev is not a member of NATO, Russia is fighting forces trained and armed by the Western Alliance.
But at one point in history, Putin’s Russia wanted to join NATO.
“Russia is part of European culture. And I cannot imagine my own country in isolation from Europe and what we often call the civilised world. So it is hard for me to visualise NATO as an enemy,” said Putin, the country’s acting president in 2000, three weeks before the election, which made him president.
At the time, Putin’s words were interpreted as extending an olive branch to the West. Since then, Putin has been in power, rising to the occasion and becoming the sole decision-maker of the country.
The same year, according to the then-NATO chief George Robertson, Putin bluntly asked: “When are you going to invite us to join Nato?” Robertson advised the Russian president that he needs to “apply to join NATO” and not expect an invitation.
Now, under massive Western sanctions isolating Moscow from Europe and with much of the “civilised” world allied with Washington, Russia has reached a point that its long-serving president could not have imagined two decades ago. His words now sound like those of a man with an unfulfilled desire for an impossible love affair with NATO.
Some experts believe it could have been real if the West had taken Russia’s membership prospects seriously back in 2000 or the 1990s when Mikhail Gorbachev, the last Soviet leader, and Russian Federation’s first President Boris Yeltsin also lobbied for Moscow’s entrance to the alliance. Had it happened, the current Russian onslaught on Ukraine could have been prevented.
“Because they thought that they had won the Cold War and could dictate all the terms as Russia was 'beaten'. They were high on the euphoria of a perceived victory rather than a massive opportunity for peace and security,” says Gregory Simons, an associate professor at the Institute for Russian and Eurasian Studies at Uppsala University.
“They did not regard Russia as an equal and probably thought to use the idea of membership as a means of compliance. Like the EU has done to Turkey for years,” Simons tells TRT World.