Collocations for militia - noun

armed
a highly armed militia

volunteer
local
colonial
government, state
private
well-regulated

join, serve in
organize
form, set up
The anarchists started to form volunteer militias.

train
disarm, disband
call out
He said he would call out the state militia if the rebels did not surrender.

company, forces, group, unit
movement (esp. AmE)
Cooper was a leader of the militia movement until his death.

fighter, man, member
commander, leader