muster

nouns

a gathering of military personnel for duty
"he was thrown in the brig for missing muster"
domain category
the military forces of a nation
"their military is the largest in the region"; "the military machine is the same one we faced in 1991 but now it is weaker"
is a type of (narrower)
a group of persons together in one place
compulsory military service

verbs

gather or bring together
"muster the courage to do something"; "she rallied her intellect"; "Summon all your courage"
call to duty, military service, jury duty, etc.
is a type of (narrower)
order, request, or command to come
"She was called into the director's office"; "Call the police!"