Ключевые слова: barb, barbed, barbwire, base, border, boundary, camp, closeup, concept, danger, defend, defense, design, detail, entry, fence, forbid, forbidden, freedom, guard, hard, invade, iron, knot, limit, line, metal, military, no, obstacle, old, pattern, prison, private, prohibit, property, protect, protection, razor, rust, rusty, safety, secure, security, sharp, steel, symbol, trespassing, up, wire,