to place sb on field of death / to confront with mortal danger / to give sb no way out / with one's back to the wall / looking death in the eye / part of idiom 置之死地而後生|置之死地而后生
place sb on a field of death and he will fight to live (idiom based on Sunzi's "The Art of War" 孫子兵法|孙子兵法[Sun1 zi3 Bing1 fa3]); to fight desperately when confronting mortal danger / fig. to find a way out of an impasse