отбранителен означава в английски

defensive▼(intended for defence; protective)
adjective
[UK: dɪ.ˈfen.sɪv] [US: də.ˈfen.sɪv]

rampart [ramparts]▼(defensive ridge of earth)
noun
[UK: ˈræm.pɑːt] [US: ˈræm.pɑːrt]