I hope someone can help me with this. In my novel, a unit of army guys is assigned to assist a team of scientists during a volcanic eruption. It's set in modern times and they are based in a university hall of residence (that was the best place the scientists could find to monitor the volcano from). Over the course of several days there is a bunch of smaller (but still pretty big) eruptions, followed by one big eruption lasting several hours - think on the scale of Krakatoa or Pinatubo. The army unit's mission is to assist with keeping the scientists safe (e.g. from looters and the like), helping them get to and from observation sites, helping them evacuate when the time comes, and helping to keep the building from collapsing if they are unable to evacuate. As it turns out, their escape route is cut off and they are unable to leave. As mains electricity is cut off due to the eruption, they are left entirely reliant on generators to provide power (the army were organised enough to bring these, because, well, it's the army). The army guys also set up some sort of field medical facility, which is what I have questions about. My questions are: What sort of medical facilities would the army be able to set up and run under these conditions? Inside the building, or in some sort of tent or whatever? (I'm already thinking inside because of heavy ashfall, but I thought I'd better ask in case somebody more knowledgeable has better information). Most importantly, what level of care would they be able to provide, and what sort/severity of injuries would they be able to treat in this scenario? I especially need an answer for that last question, because one of my characters sustains serious injuries in a fall from the roof (while shovelling off the ash to prevent the roof from collapsing), which he dies from, and I need to know what if anything they would potentially be able to do for him in order to make the death scene believable. I hope that was clear enough. Thanks for any help you can give.