What is another word for be/go on red alert?
Pronunciation: [biː slˈaʃ ɡˌə͡ʊ ˌɒn ɹˈɛd ɐlˈɜːt] (IPA) 
When it comes to expressing a state of heightened alertness or readiness, there are several synonyms for the phrase "be/go on red alert." One alternative is "be/go on high alert," which conveys a similar sense of urgency and preparedness. Another similar phrase is "be/go into emergency mode," which implies a more urgent and potentially life-threatening situation. "Be/go into battle stations" is another option that evokes military or naval imagery and suggests that a defensive posture is necessary. Whatever phrase you choose, it should communicate a sense of urgency and readiness to handle whatever situation might arise.
