battlefield，battleground，combat zone ；
[例句] 对于战地记者来说，躲避狙击手的子弹是家常便饭。 For war reporters, dodging snipers' bullets is all in a day's work.
[例句] 有些人讽刺地说战地的薪饷很不错,人们可借这次战争赚到很多钱. Some say sardonically that combat pay is good and that one can do quite well out of this war.