You don't bring a knife to a gun fight ...
Well, of course, if you're going to Afghanistan to camp out or do ethnographic research or distribute food packets to starving refugees, a big Strider would be handy for breaking open containers.
If you're going there to fight, why even bring a gun? The Air Force will bomb the b@st@rds back to the Stone Age, anyway, right? Nooooo ... you need personal armament, and that means fists through knives through pistols through rifles and grenades and, and, and. Not all of it always, but a knife isn't bad insurance for close encounters of the unfriendly kind, it isn't inconvenient or clumsy to carry, and it does have those less violent applications to recommend it, as well.
If "Government Issue" means nothing else allowed, well then, this exercise contradicts its own best interests. Of course every civilized human being should carry a SAK or multitool! I do. But I'm looking at the question from the point of view of 'what is the minimum needed in a worst-case scenario?'