I remember having an interesting discussion with fellow Officers when, in 2002, the US was talking world opinion into invading Afghanistan...
"It will not be another Vietnam" thundered a well known world leader.
"It won't - I commented to my colleagues - it'll be another Afghanistan", explaining how the Afghan muhajeddin had beaten the living daylights out of the Soviets
to the point of forcing the Kremlin to change TTPs (Tactics, Techniques and Procedures) and even redesigning infantry vehicles.
Google BMP2 and BMP3 and check out the visible differences.
It ain't looking nice for ANY of the participating Nations, and here's the evidence:
http://ricks.foreignpolicy.com/posts/2012/02/06/american_general_dies_in_afgh...And these links within the article
http://armedforcesjournal.com/2012/02/8904030http://turcopolier.typepad.com/files/go-deep-_14-oct-09_.pdfThis second document really deserves a read...

We're all in this, we ought to pull out mighty quickly