defense_force
1. [ noun ] (military) an organization of defenders that provides resistance against attack
Synonyms: defence defence_force defense
Examples:

"he joined the defense against invasion"

Related terms: organization bastion defend
Similar spelling:   defence_force
  defense_team
  defense_attorney
  defense_system
  defense_lawyer
  defenseless
  defense_lawyers
  defense_reaction
  defensible
  defense_policy
  defenselessness
  defense_program