It is our company policy that anyone going into a hostile environment must attend a specific 5 day hostile environment course to start with. We would also expect a risk assessment to include internal travel, communication, food, water, accommodation etc. If the environment is very hostile previously they have been provided with appropraite first aid equipment including suture kits (although I am not keen on sending anyone to such an environment if we can help it now) Previously we have also issued flak jackets, chemical suits etc depending on the risks in the hostile environment. Also consider communication in an emergency, liaison etc Hope this helps

You can also find information on 'at risk' travel destinations from the Foreign and Commonwealth Office. They also do a 'LOCATE' service for persons to register for emergency contact purposes.

Not exactly required reading for most people in H&S but the SAS security handbook has some good advice for this scenario in it. That'll be the one on sale to the general public. Not the one for internal use that they have to eat to destroy the evidence after reading it. ;-)

I suggest a Specialist Risk Management company or PMC such as Armorgroup.