sentry duty

• Задача или обязанность стоять на посту в качестве часового, обычно в военном или охранном контексте, для наблюдения за опасностью или несанкционированным проникновением.

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.

   Караульная служба

   • 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.