Refers to the military police force, especially in historical contexts such as the Imperial Japanese Army's Kempeitai. In modern contexts, may refer to military police in general.
He was arrested by the military police on suspicion of being a spy.
During the war, the military police maintained public order in the town.
He belongs to the military police corps.
Military police were patrolling around the station.
憲兵 (military police) and 民兵 (militia/militiaman) both end in 兵 and sound similar, but 憲兵 enforces military law within a regular army while 民兵 is a citizen force outside it.
military police corps; regiment of military policemen
From Middle Chinese 憲兵 (xiànbīng, 'military police'), composed of 憲 ('law, regulation') and 兵 ('soldier'). The term was adopted in Japanese to refer to the military police force, particularly the Kempeitai of the Imperial Japanese Army.