The first Gulf War roughly 30 years ago (Bush Senior) proved that massive Russian armor is obsolete against superior air power. That is why the Russians moved to incapacitate the small Ukrainian Air Force.
The following images may be shocking. In 1991, the Iraqis had one of the largest armored forces in the world. They were equipped with the latest and best Soviet equipment. In a matter of an hour, they were reduced to this. Don't look if you're squeamish... it is called the Highway of Death.
I should mention that American pilots felt sympathy for these sorry a$$holes and made a couple of warning passes over the convoy so they could abandon their vehicles and flee. That is why so many vehicles are way off the road.
The 4th greatest mechanized Army on Earth was decimated in less than two hours.
I'm not writing this as some pro-American cheerleader.
I am only trying to point out that the whole fiasco in Ukraine is global Kabuki Puppet Theater. The 20-mile long column of 'invincible' armor flowing into Ukraine could be reduced to smoldering ash in less than an hour. If anyone cared.
The GDP of Russia is 1/14th of the US and about 1/30th of the US plus NATO. The GDP of Russia is actually less than California, Texas or New York. Russia is about 1% of global GDP so they are almost insignificant on the world stage (except for the fact that they still have Nukes).
The fact that they are allowed to get away with this bully bullshit makes me think it is just another con to keep us afraid.
DON'T PANIC.