100 feet...tree lines of 50 feet tall and then do the math about AA's... and while you are at it, I suggest you try buying 8000 cell phones + poles and placing them for $500.

The fact your article got 3.7K claps proves that math education in the US must be failing big time. The same for common sense. Because anyone with a minimal brain knew at the onset of this war that Ukraine could never win it. That it inevitably would run out of soldiers.

This war was never about Ukraine and certainly not about saving its people. It's why the US is dumping en mass their "deathtrap" Bradley's on them (enjoy https://www.imdb.com/title/tt0144550/) And read the RAND publications. Dwight D. Eisenhower warned humanity about this > https://www.youtube.com/watch?v=OyBNmecVtdU