militia
noun /məˈlɪʃə/
  /məˈlɪʃə/
[singular + singular or plural verb]- a group of people who are not professional soldiers but who have had military training and can act as an army
- He said he would call out the state militia if the rebels did not surrender.
 - The anarchists started to form volunteer militias.
 - a highly armed militia
 
Oxford Collocations Dictionaryadjective- armed
 - volunteer
 - local
 - …
 
- join
 - serve in
 - organize
 - …
 
- company
 - forces
 - group
 - …
 
Word Originlate 16th cent.: from Latin, literally ‘military service’, from miles, milit- ‘soldier’.