Editing Defensive wall (section)

===South Asia===
Some settlements in the [[Indus Valley civilization]] were also fortified. By about 3500{{nbsp}}BC, hundreds of small farming villages dotted the [[Indus]] floodplain. Many of these settlements had fortifications and planned streets. The stone and mud brick houses of [[Kot Diji]] were clustered behind massive stone flood dykes and defensive walls, for neighboring communities quarreled constantly about the control of prime agricultural land.<ref>The Encyclopedia of World History: ancient, medieval, and modern, chronologically arranged By Peter N. Stearns, William Leonard Langer. Compiled by William L Langer. Published 2001 Houghton Mifflin Books. History / General History. {{ISBN|0-395-65237-5}}. p. 17.</ref> [[Mundigak]] ({{Circa|2500{{nbsp}}BC}}) in present-day south-east [[Afghanistan]] has defensive walls and square bastions of sun dried bricks.<ref>Banister Fletcher's [[A History of Architecture]] By Banister Fletcher, Sir, Dan Cruickshank. Published 1996 Architectural Press. Architecture. 1696 pages. {{ISBN|0-7506-2267-9}}. p. 100.</ref>