We will not be fighting any conventional wars in the near future. Even a war with iran or n. korea would be very similar to iraq. The combat techniques are similar. Counter insurgency is simply learning to deal with the locals and getting them on your side. It's an addition to the regular combat techniques that all soldiers learn.
I think Gentile is just getting his name out there for future political ambitions or a slot with cnn as a military annalist.
When I die I'm sure to go to heaven, cause I spent my time in hell.
You get more with a kind word and a two by four, than you do with just a kind word.