defensive barriers
Structures blocking attackers
Defensive barriers are structures or obstacles designed to block, slow, or deflect attack.
The term applies to physical fortifications—walls, trenches, barricades—and to abstract protections: The company erected defensive barriers against hostile takeovers.
In psychology, defensive barriers are mental mechanisms that shield against emotional threat: Her defensive barriers made intimacy difficult.
- wallVertical enclosing structure
- bunkerReinforced subterranean stronghold
- moatDefensive water ditch
- sea wallCoastal flood defense structure
- bulwarkDefensive fortification or safeguard
castle walls · deterrence · fire wall · fortifications · rampart · pillboxes · blast walls · trench · no man's land · earthworks · mucous membranes · immune system · shield · parapet · fence · border fence · keep out · stockade
defensive barriersassault weapons
Military-derived rapid-fire guns
siege engines · battering rams · projectile weapons · artillery · missiles
defensive barriersaccessible entrances
Openings accommodating mobility needs
breaches · gaps · corridors · thoroughfares · bridges
defensive barriersoffensive operations
Attacks to gain ground
beachheads · forward positions · bridgeheads · expeditionary forces