antimilitant

[ an-tee-mil-i-tuh nt, an-tahy- ]
/ ˌæn tiˈmɪl ɪ tənt, ˌæn taɪ- /

adjective

opposing military power, especially its increase or development or the influence of military leaders.

noun

a person who opposes military power, especially its increase or development: Antimilitants demonstrated against nuclear weaponry.

Origin of antimilitant