force, military force, military group, military unit - a unit that is part of some military service; "he sent Caesar a force of six thousand men"

foe, foeman, enemy, opposition - an armed adversary (especially a member of an opposing military force); "a soldier must be prepared to kill his enemies"

enemy - an opposing military force; "the enemy attacked at dawn"

armed forces, armed services, military, military machine, war machine - 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"

adversary, antagonist, opposer, resister, opponent - someone who offers opposition

besieger - an enemy who lays siege to your position

people - (plural) any group of human beings (men or women or children) collectively; "old people"; "there were at least 200 people in the audience"

mortal enemy - an enemy who wants to kill you

challenger, competitor, contender, rival, competition - the contestant you hope to defeat; "he had respect for his rivals"; "he wanted to know what the competition was doing"