Here is what Putin stated...
“… after the US destroyed the INF Treaty, the Pentagon has been openly developing many land-based attack weapons, including ballistic missiles that are capable of hitting targets at a distance of up to 5,500 km. If deployed in Ukraine, such systems will be able to hit targets in Russia’s entire European part. The flying time of Tomahawk cruise missiles to Moscow will be less than 35 minutes; ballistic missiles from Kharkov will take seven to eight minutes; and hypersonic assault weapons, four to five minutes. It is like a knife to the throat. I have no doubt that they hope to carry out these plans, as they did many times in the past, expanding NATO eastward, moving their military infrastructure to Russian borders and fully ignoring our concerns, protests and warnings…"
“I want to say clearly and directly that in the current situation, when our proposals for an equal dialogue on fundamental issues have actually remained unanswered by the United States and NATO, when the level of threats to our country is increasing significantly, Russia has every right to take retaliatory measures to ensure its own security. That is exactly what we will do.”
But U.S.-Nato can be in a position to invade Russia and secure its resources for resource-starved Europe or coerce it to submission. This at least is the thinking of the Russians prompting their war preparations.
Russia's invasions of Ukraine and Georgia came up only after they expressed willingness to join nato, and Putin saw them as security threats to Russia, especially if wmd targetting russia for pre-emptive strikes are deployed there.
It is quite clear that if US.-Nato had honored its promises to Gorbachev and Russia, none of these wars would have happened, and the Russians would have contributed to the economic development of Europe by providing vital energy resources.