Similar word to servicepeople:

GI, aggressor, antagonist, assailant, battler, belligerent, boxer, brawler, bruiser, bully, champion, combatant, competitor, contender, contestant, disputant, duelist, gladiator, heavy, jouster, mercenary, militant, opponent, person-at-arms, pugilist, punching bag, rival, scrapper, serviceperson, slugger, soldier, tanker, warlord, warrior, wildcat