defensive_measure
1. [ noun ] (military) military action or resources protecting a country against potential enemies
Synonyms: defense defence
Examples:

"they died in the defense of Stalingrad" "they were developed for the defense program"

Related terms: military_action air_defense mining stand umbrella chemical_defense deliberate_defense biological_warfare_defense biodefence hasty_defense military
Similar spelling:   defensive_structure
  defensive_attitude
  defense_mechanism
  Defense_Secretary
  Defense_Department