muster

a gathering of military personnel for duty

compulsory military service

Something shown for imitation; a pattern.

gather or bring together

call to duty, military service, jury duty, etc.

To collect and display; to assemble, as troops for parade, inspection, exercise, or the like.

To be gathered together for parade, inspection, exercise, or the like; to come together as parts of a force or body; as, his supporters mustered in force.