I totally disagree.
Putin loved the USSR. He wants to bring it back together under Russian supremacy.
Looking at his involvement with the Ukraine, you can see it's been going on for 20 years.
en.wikipedia.org
"In 2002, the Russian Government participated in financing the construction of the
Khmelnytskyi and the
Rivne Nuclear Power Plants."
Kuchma was the Ukrainian president from 1994 to 2005. The guy was pro-Russian and pro-Putin in the last 5-6 years of his presidency. Though this isn't full on Putinism, it was more a pragmatic political choice. He supported a pro-EU candidate to replace him as president.
That president was Viktor Yushchenko, a former Prime Minister of Kuchma's.
And guess what, Yushchenko was POISONED. A familiar tactic of Putin's.
It's pretty obvious that Putin had something to do with it. Three of the men at the dinner where he was poisoned are in Russia and Russia refused to extradite these men.
Didn't work, Yushchenko became president and wanted to join the EU and NATO. Not hard to see why. Those former USSR countries that joined the EU are rich. While those that didn't, Belarus and the Ukraine especially, but also Georgia, and other -stan countries and Armenia, are all under Russia's thumb.
Then there was a gas conflict, in 2009. Russia withdrew from a missile warning agreement, and the Ukraine supported Georgia against Russia in the 2008 attack on Georgia.
After this a pro-Russian president from the Donbas region. Then it went all anti-Russia from there, because... well, after the pro-Russian president was kicked out, the Russians then invaded the Crimea and the east of the Ukraine....
Putin had been trying to get his own people in place in the Ukraine, when it failed he used it as a pretext to take over parts of the Ukraine.
You say the Ukraine was taken from Putin. Er... excuse me, the Ukraine was not Putin's in the first place. Anyone who acts like it was and then claims it's NATO's fault that the Ukraine did not want to be Russian is ludicrous.