Just check OPs history and you’ll glean all you need to know.

Nope. He said that Russia only had 190,000 troops in the beginning and that number was far too small to conquer all of Ukraine, much less all of Europe. He also used history as an example to make the point that the Nazis used 1.5 million troops, somewhere around that number, to conquer Poland, and that does not even count the Russian invasion from the East. Furthermore, he is a professor, you are not, remember that. He uses facts and logic, you don’t.