on standby alert

в стані бойової готовності (`The commanders of the 10th Mountain Division were told to keep one company on standby alert.` - Bowden, Mark. `Black Hawk Down` - p. 29)

Standby Reserve

standby hydraulic system

standby transmitter

alert condition (LERTCON)

combat alert duty

combat alert forces

crash air alert

distress alert; distress call

full alert (posture)

Global Disaster Alert and Coordination System (GDACS) (UN)

Global Outbreak Alert Response Network (GOARN, WHO)

notification of alert

Ship Security Alert System (SSAS)

status of alert (state of readiness)