noun
border patrol; border guard
Refers to the organization or its members responsible for guarding national borders.
国境警備隊が密入国者を発見した。
The border patrol discovered illegal immigrants.
彼は国境警備隊に所属している。
He belongs to the border guard.
Compound of 国境 (border) + 警備 (security, guard) + 隊 (corps, unit).