Moving the Rhod. Fire Force concept to Afghanistan?

[JMA]

True enough, but you also need to consider which ratio you're looking at.

I use word "ratio" when comparing the number of own forces KIA with those of the insurgents.

I use the term "kill rate" to explain the % of those insurgents killed against those contacted. (contact 20, kill 16 and you have a 80% "kill rate".)

Note: You needed to verify a kill with a body and a weapon. A body without a weapon even with bits and pieces of uniform doesn't cut it. (added as an edit for clarity)