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 | The earliest forts were built to protect the colonists. As Portsmouth Harbor's importance increased with its Revolutionary War shipbuilding industry and the establishment of the Portsmouth Naval Shipyard in 1800, additional fortification was needed.
At Jerry's Point there is evidence of earthwork fortification, circa 1842, and a stonework fort, circa 1873. Following the Spanish ... |  | 04/11/2007 | 679 | 



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 | No Mans Land Fort was built in the Solent between the years 1867 and 1880 to protect Portsmouth. It is almost identical to St Helens Fort. It is now a luxury home with 2 helipads. It has recently become a hotel for high-paying guests, due to the privacy it offers |  | 03/04/2006 | 622 | 



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 | The onset of World War II saw the need for increased protection of Portsmouth Harbor that could not be met by any of the other existing forts of the area. Two batteries of modern twin 6-inch guns (200-series), with a range of 15 miles, and a battery of twin 16-inch guns (100-series), with a range of 25 miles, were planned as part of the new defenses. Fort Foster only had room for one new batter... |  | 04/11/2007 | 512 | 



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 | The land for Fort Foster, located on the southwest tip of Gerrish Island in Kittery, Maine, was acquired by the federal government in 1872, making this fort the last of the "old" forts that were built in the Portsmouth area.
In 1899 construction was started on new concrete batteries to help protect the Naval Shipyard in the aftermath of the Spanish-American War. In 190... |  | 04/11/2007 | 557 | 



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 | S/W Overlay shows Portsmouth harbour at the year 1939.
Potsmouth is a significant naval port for centuries, previously the world's largest naval base and home to many famous ships, Portsmouth has declined in recent years but remains a major dockyard and base for the Royal Navy. |  | 08/24/2005 | 437 | 
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 | Here are all defense batteries and forts of Portsmouth. |  | 12/14/2005 | 329 | 



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 | Image of Portsmouth harbour, contains ships etc. |  | 10/12/2005 | 224 | 



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 | Spitbank Fort was a Royal Commission fort built between 1867 and 1878, the smallest of the 3 main forts in the Solent off Portsmouth, England. It is 162 feet across, with 1 floor and a basement, and armour plating only on the seaward side. It was originally planned to have armed with 9 10" eighteen ton RML guns on the seaward side, and 6 7" seven ton RML guns on the landward side. In ... |  | 03/04/2006 | 189 | 



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 | Allows people to easily track between Portsmouth City's cycle map and an aerial view of the city |  | 04/25/2006 | 341 | 
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 | With a 170 meter high this tower gives his visitors a great overview of Portsmouth habour. |  | 09/18/2005 | 271 | 



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 | The current Fort Moltrie is the third fort at this location. It is a brick fort built in 1809. It was modernized in the 1870s, with rifled cannon and concrete bunkers. Additional modernization in the 1880s turned all of Sullivan's Island into a military complex, of which the old fort was just a part. |  | 03/16/2006 | 378 | 



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 | Portchester Castle is a varied and interesting site, comprising a Roman Fort, later adapted into a Norman Castle, which in turn became a medieval Royal palace. |  | 10/16/2005 | 295 | 



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