Ключевые слова: abandoned, ancient, architecture, armed, armour, army, asia, blockhouse, bombard, building, bunker, cannon, castle, cement, collapsed, command, concrete, construction, defending, defense, fort, fortification, fortified, fortress, heavy, historic, historical, history, indonesia, landmark, landscape, military, old, protection, protective, resistant, ruin, sand, second, shelter, soldier, stone, stone walls, tower, tunnel, underground, vintage, wall, war, ww2,