If this is true (and I have my doubts) then this would be devastating for Russia.
This would require huge troop and supply movements without Russia detecting via satellite intel or SIGINT.
I’d expect Forbes to be a somewhat reliable (although left-slanted) source.
Sounds like the Ghost of Kiev is back in action. Seems odd that any build up to attack went unnoticed. Other than it’s Ukraine vs Russia, a lot of stories coming out are sketchy. No European Land War for the US!