sentry duty

• Service ou obligation de monter la garde en tant que sentinelle, généralement dans un contexte militaire ou de sécurité, afin de surveiller les dangers ou les intrusions non autorisées.

The task or responsibility of standing guard as a sentry, typically in a military or security context, to watch for danger or unauthorized entry.

1. Guard dutyB2formal

   The task or responsibility of standing watch as a sentry to protect a place or person.

   service de sentinelle

   • The soldier was assigned sentry duty at the main gate.
   • He performed sentry duty throughout the cold night.
   • Sentry duty requires constant alertness and discipline.