defensive structures
Walls and ramparts
Defensive structures are constructions designed to protect against attack—walls, fortifications, bunkers, trenches, and similar barriers.
The term appears in military history, architecture, and strategy games: The castle's defensive structures included a moat and thick stone walls.
In broader use, defensive structures can be psychological: the mental barriers people erect to protect themselves from emotional harm.
- rampartsProtective fortress walls
- stone wallsRefuses to cooperate
- wallsVertical enclosing structures
- moatsDefensive water channels
- bastionsFortified defensive positions
battlements · fortifications · siege warfare · boundaries · keep out · portcullis · iron gates · casemates · trenches · redoubt · parapets · embrasures · guard towers · palisades · barricades · encryption · mental fortitude · drawbridge
- ancient warfarephalanx, warriors, army, legion, battle
- battlefieldsGettysburg, Waterloo, front lines, Antietam, frontline
defensive structuressiege weapons
Machines for attacking fortifications
battering rams · trebuchets · catapults · artillery · bombers