12. To secure a direct connection between the castle and the sea, the Portuguese built a double curtain wall (couraça), another technical solution of Islamic origin. Between these two walls they could receive safe aid from the fleets, or flee if besieged.
![Ksar Seghir, 1977](https://expo.ksarseghir.fcsh.unl.pt/wp-content/uploads/sites/97/2021/04/1_Ksar_77-12_Image0254x-300x198.jpg)
![Ksar Seghir, 2017](https://expo.ksarseghir.fcsh.unl.pt/wp-content/uploads/sites/97/2021/04/2_IMG_0454-225x300.jpg)
![Ksar Seghir, 2012](https://expo.ksarseghir.fcsh.unl.pt/wp-content/uploads/sites/97/2021/04/2_203-300x225.jpg)
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