A vedette is a mounted sentry or picket, who has the function of bringing information, giving signals or warnings of danger, etc., to a main body of troops.
[1][a] In modern terms, the soldiers who man listening-posts are the equivalent of vedettes.
Navies use the term vedette to refer to a small scouting or patrol boat.
All around Salisbury Plain in southern England, the roads connecting the plain with the surrounding countryside feature brick-built guard-posts, staffed by security officers whenever there is military activity beyond such points.
[2] The Gardjola is a prominent guard tower on Maltese forts in Malta and an example of a vedette.