Ключевые слова: aliens, background, ban, barbed, barbwire, border, boundary, chain, clipart, closeup, concept, crime, crossing, danger, defend, defense, design, excluded, felony, fence, forbidden, freedom, guard, hard, illegally, immigration, invade, iron, limit, line, metal, migrant, military, obstacle, outside, pattern, people, prison, private, prohibit, property, protect, protection, rust, security, steel, travel, trespassing, urban, wire,