Ключевые слова: abstract, background, barb, barbed, barrier, border, boundary, concept, country, cross, crossing, danger, dusk, escape, europe, fence, frame, freedom, illegal, iron, jail, metal, mexico, migrant, military, prison, protection, punishment, rusty, safety, security, sharp, silhouette, smuggling, state, steel, sundown, symbol, syria, term, travel, turkey, twilight, usa, violation, wall, wire, yellow,