Ключевые слова: abstract, against, area, background, barb, barbed, barbed wire, barbwire, barrier, black, blue, border, boundary, cage, concept, crime, danger, defend, defense, escape, fence, forbidden, freedom, grid, guard, iron, line, metal, military, national, outdoor, outdoors, pattern, privacy, private, protect, protection, restricted, safety, security, sharp, sign, silhouette, sky, steel, view, wall, warning, wire, world refugee day,