A defensive wall is a fortification usually used to protect a city, town, or other settlement from potential aggressors. The walls can range from simple palisades or earthworks to extensive military fortifications with towers, bastions, and gates for access to the city.
In response to incessant attacks on the slave trade, the double-ringed Gwollu slave defense wall was built to protect the town. A thick inner wall protected the homes in the community and a second outer wall encircled their farms and water sources.
The Gbolle Defence wall
The place of birth of the former President of Ghana, Dr. Hilla Liman
In the process of defense, the enemies could be seen through the holes