montar la guardia

1.
SpainLatin Americaneutralformal
- To take up guard duty or stand watch, remaining alert to protect a place, person, or group.
2.
SpainLatin Americaneutral
- To establish or organize a watch or security detail for a particular purpose or event (figurative extension).

Examples:

ES: Déjeme montar la guardia.
EN: Let's assemble the guard to me
ES: Tal vez debamos montar la guardia.
EN: Maybe we should stand guard.
ES: "Ayúdanos a montar la guardia".
EN: "Help us guard."
ES: Hice dos, tres idas y vueltas. Me dolían las piernas, así que regresé a montar la guardia.
EN: I made two, three full trips, my legs hurt, I returned to guard duty.
ES: Vamos a montar la guardia, acampamos aquí esta noche.
EN: Go and stand guard. We'll camp here tonight.
ES: Es hora de que yo también me retire, amigo. Te toca montar la guardia.
EN: It's time for me to fold, too, amigo, your turn to stand watch.