I grew up a military brat, and have studied this shit for years. While I never thought the Russians (or Soviets) were 10ft tall, I never in a million years thought they would be this utterly incompetent. I have some Estonian friends who were concerned about Russia steamrolling them before NATO could really respond (they joke that Russia considers Estonia a suburb of St. Petersburg). And I always empathized with them. No strategic depth, minimal forces, ethnic Russians in the Baltics who could be used by Putin as a casus belli. And NATO seemed sclerotic and weak.

Now? I think that NATO could easily handle almost anything Russia could throw at it, short of nukes.

It really is amazing how poorly they've performed. And the BTG concept has been utterly disproven as a brittle, unsustainable force.