Ключевые слова: antitank, barrier, battle, border, boulder, boundary, construction, defence, defend, defense, fence, finland, forces, forest, fortifications, fortress, frontier, group, history, landscape, line, lots, many, military, old, pine, pine tree, pinewood, rock, row, stone, stonework, straight, suomi, tank, tree, trunk, wall, war, warfare, wilderness, wood, woodland, ww2, wwii,