zhàn​qū

theater

战区 (戰區) zhàn​qū
theater noun
a specific geographical area for which a military command has responsibility

Relief supplies were sent in a steady stream to the tense war zone.

war zone noun
an area where active military combat or fighting is taking place

Many civilians are trying to flee the war zone.

Frequency

Movie subtitles
1.13 per million appears in 1% of films
Written text
2.11 per million

Sources

Definitions
CC-CEDICT