Love you Glory, but we need to do a little fact checking/correction.
1. Russia is the second most powerful military in the world behind the US and slightly ahead of China. There is a massive separation between the top 3 and 4th most powerful India. The Ukraine doesn't make the top 20.
2. New volunteers are better than nothing, but nothing compared to long term reservists who have years of training and many of which were previously active duty.
3. It's not WW2, the muddy ground is a non factor as paved roads, rail, and air are going to be the means of invasion.
5. Those wars didn't last long at all. Much like The US vs Iraq twice. The war is a breeze, it's the insurgency that lasts for ever. Would Ukrainian citizens mount insurgent warfare like Chechens, Taliban, or Al Qaeda/Iraqi terrorists, or just move on with their mostly 1st world lives going from one semi corrupt regime to a purely corrupt regime?
7. Again, Russia is the 2nd most powerful military in the world. They will absolutely mop the floor with the Ukraine in conventional combat. Those reservists are not flakes
8. Bad miss. Putin is extremely popular. In fact only pre-Monica Bill Clinton and Reagan touch Putin's popularity since WW2 in the US.
9. I don't want to start a big argument, but make no mistake Russia/Putin are for real. And they are our enemy. From Syria, to Iran, to cyber warfare/cyber terrorism Russia is picking at all of our scabs. It's about time to embarrass the **** out of them, but I have my doubts as well. If the US/NATO make a strong statement he will back down. If it's a limp-wristed response, he will impose his will.
Agree with all of this except one part - Russia being the second strongest military. The US military believes China is #2 and Russian is #3 and this is based on the inability of Russia to carry out a long, drawn out conflict due to limitations of their economy. Having said that, you're correct that they would wipe up Ukraine. Urkaine would be nothing more than a light snack for them.