This is the 8646th most frequent Japanese word.
文民
"Civilian" (non-military person).
In this sentence, 文民 (civilian) refers to non-military personnel who are involved in governmental tasks.
文民が国の行政において重要な役割を果たしています。
Civilian personnel play an important role in the administration of the country.
Here, 文民 (civilian) is used to describe the concept of civilians having oversight over military operations to ensure democratic governance.
軍は文民統制を遵守しなければならない。
The military must adhere to civilian control.
In this usage, 文民 (civilian) represents the perspective of ordinary citizens in contrast to specialized or professional views.