Ключевые слова: abstract, background, barb, barbed, barbed wire, barricade, barrier, beautiful, blue, border, boundary, camp, chain link fence, countryside, danger, fence, field, freedom, frontier, geographical border, grass, green, iron, jail, landscape, metal, nature, prison, prisoner, protection, razor wire, rebellion, refugee, rural, security, security system, sky, steel, tree, war, wire,