+**Fortifications** are structures built for [Defense](/wiki/defense) against attack. These enduring constructions, ranging from simple earthworks to elaborate city walls, have historically protected settlements and strategic points. A stout [Wall](/wiki/wall) is often a defining feature of such defensive architecture.
+## See also
+- [Castle](/wiki/castle)
+- [Fort](/wiki/fort)
+- [Siege](/wiki/siege)
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