👉 A fortification is a structure or arrangement of buildings, structures, and other objects used to secure an area, defend it from attack, and provide for public safety. It may be constructed on land, sea, or air, and can include walls, towers, watchtowers, forts, palisades, bridges, gates, defensive structures, and other fortification elements. A fort is a type of military structure that was used by many civilizations to protect themselves from invaders. Fortifications were often