I would think that it would be easiest to take some vermicompost that has eggs in it rather than actual worms. Might be less aversion to it. Then, as the eggs hatch, start a bin there.

Someone recommended that. If he's going to take worms, that's certainly the best way to do it. Others were worried about taking an invasive species in to a location that may not have that type of worm. So far he's gotten lots of good advice, but no one knows anything specific about Afghanistan. I doubt he'll find anyone, but I thought I'd cast the net wider for him.

why bother with worms? he should just make a hot compost pile - esp presuming there will be a large volume of waste.