Ключевые слова: abstract, army, barb, barbed, barbwire, barrier, blue, border, boundary, camp, chain, closeup, concentration, crime, curtain, danger, dangerous, defence, defense, detail, escape, escort, fence, guard, iron, isolated, jail, metal, military, obstacle, painful, prevent, prison, protect, protection, razor, safe, safety, secure, security, separation, sharp, silhouette, sky, spike, steel, stop, war, wire,