[jason taylor]

I wouldn't choose between infantry but that is definitely the most because they remained in action for weeks at a time. Other jobs had similar casualty ratios but retired to fairly comfortable positions in between.

On second thought I would think a Japanese infantryman in the Solomon's or New Guinea. There was no food because it was at the bottom of the Ocean and the Americans, the Australians, the Natives, heck even the INSECTS were trying to kill you. And usually succeeding sooner or later.