“Hahaha show me a picture of 4 mile long line of Ukraine military tanks.”
You clearly never served in the military. Regular military forces are not all armored units; indeed, armored units are a small fraction of total military strength.
Boy you are slow with English comprehension.
MAIN POINT IS superpower of the day, USA did not defeat North Vietnam. Americans hightailed from rooftops in helicopters as Saigon fell.
It then follows that Russia is doing better by occupying Dobas, and land access to Crimea, and full access to Black Sea as things stand today.
You better not be promoted to a general in the US military.