Sentence:  The bush war still scared him. Even more this day for he knew he was to travel through a <WSD>hot zone</WSD> with only three other men, none of them soldiers either, to an area close to the Gona-Re-Zhou transited extensively by groups of well armed communist trained insurgents based in Mozambique. 
Meaning of the word marked with <WSD> tags:  An area where fighting or hostilities are likely to erupt.