Ключевые слова: army, arrest, background, barb, barbed, barbwire, barrier, border, boundary, chain, construction, crime, danger, design, fence, forbidden, freedom, graphic, grey, guard, icon, illustration, iron, isolated, isolation, jail, metal, military, prison, private, protect, protection, protective, safety, secure, security, shape, sharp, silhouette, spike, steel, texture, trespass, war, warning, white, wire,