muster in

1. Enlist in military service. For example, They were mustered in at Fort Dix. The antonym is muster out, meaning “to leave or be discharged from military service,” as in He was mustered out and given a dishonorable discharge. [First half of 1800s]

Example Sentences

Jones said her own husband, an active-duty Marine, deployed to Iraq in 2004 with the 2nd Battalion, 7th Marine Regiment based at Twentynine Palms — the same infantry unit now mustered in Los Angeles.

From Los Angeles Times

Cynthia tried to buy tickets for the Wall but didn’t pass muster in time.

From Los Angeles Times

But whatever momentum USC’s offense had mustered in the first half had faded by the start of the second.

From Los Angeles Times

No-one quite knows what sort of force the team will be able to muster in the future.

From BBC

Without a valid and confirmed source vouching for it as a fact, a deepfake might be interesting or funny but will never pass muster in a courtroom.

From Salon