The Russian tanks have reactive armor and active protection systems. Not to mention the tank in the video looked like an old rusted out T-54, which was also stationary. Using infrared sensors, Russian tanks and drones will likely spot these ATGM teams before they can make a move. The Ukrainians may destroy a few tanks here and there, but in the end Ukraine will get steamrolled badly.
LOL! If the Russians can trust their reactive armor and active protection system they wouldn't need to put a cage on top of their tanks unless they don't have the confidence to protect the top weakness part of the tank, any tank in any country in that matter. Trust me, the Javelin won't have a hard time hitting a moving tank either.
First missile was a French Milan, similar to the TOW. Second missile launch was the Javelin. You can see why the Russians want to put the cage on the roof of the turret. And the Ukranians are showing in the video that the cage is still useless again it.
This will go about as well for the US as the Afghan army vs Taliban. It might be even more embaressing. Last time, when Russia invaded Crimea, the majority of Ukrainian troops joined Russia. In a recent survey, 40% of Ukrainians responded that Ukraine and Russia are one people, one nation. Russia has sabotage units embedded inside the Ukrainian army. Ukraine has no chance against Russia.
The Ukrainians can't even beat Russian separatists after 10 years and the US has a terrible track record when it comes to training foreign armies. Look what happened in Iraq and Afghanistan. This is likely to be another embarrassment for Washington. Most military analysts believe that the Ukrainian military will last a few days to a few weeks at most. Many believe that the Russians could take Kiev in a matter of hours if they set that as an objective.
Btw Ukraine only has about 50 Javelin launchers and a few hundred missiles. Realistically their own Stugna-P ATGMs are more lethal. Their range exceeds that of the Javelin and the Ukrainas have hundreds of launchers. However in the end it won't change the outcome.
If the Ukranians want to join Russia then go ahead, don't need to launch an invasion under the guise of protecting the Russian people or use Green Men and claim they are not Russian but local Ukrainians like last time. All we know is that the Russians seem to be ready to fire on their brothers.