Portsmouth's fortification
From Wikipedia, the free encyclopedia.

The main fortifications of Portsmouth consist of the Palmerston forts in the Solent, The line of Forts situated along the top of Portsdown Hill, Southsea Castle and the Round tower at the entrance to Portsmouth harbour and Hilsea lines.

The original article can be found at: http://en.wikipedia.org/wiki/Portsmouth's_fortification.
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