sea fort

From Warlike

Q20097897




Coastal defence and coastal fortification are measures taken to provide protection against military attack at or near a coastline, for example, fortifications and coastal artillery. Because an invading enemy normally requires a port or harbour to sustain operations, such defences are usually concentrated around such facilities, or places where such facilities could be constructed. Coastal artillery fortifications generally followed the development of land fortifications, usually incorporating land defences; sometimes separate land defence forts were built to protect coastal forts. Through the middle 19th century, coastal forts could be bastion forts, star forts, polygonal forts, or sea forts, the first three types often with detached gun batteries called "water batteries". Coastal defence weapons throughout history were heavy naval guns or weapons based on them, often supplemented by lighter weapons. In the late 19th century separate batteries of coastal artillery replaced forts in some countries; in some areas these became widely separated geographically through the mid-20th century as weapon ranges increased. The amount of landward defence provided began to vary by country from the late 19th century; by 1900 new US forts almost totally neglected these defences. Booms were also usually part of a protected harbor's defences. In the middle 19th century underwater minefields and later controlled mines were often used, or stored in peacetime to be available in wartime. With the rise of the submarine threat at the beginning of the 20th century, anti-submarine nets were used extensively, usually added to boom defences, with major warships often being equipped with them through early World War I. In World War I railway artillery emerged and soon became part of coastal artillery in some countries; with railway artillery in coast defence some type of revolving mount had to be provided to allow tracking of fast-moving targets.

Wikidata
fort

JapaneseMaunsell fort

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Location: KML, Cluster Map, Maps,
46 places

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  • Japanese sea fort
  • Maunsell fort
    small, fortified towers built in the Thames and Mersey estuaries
  • No.3 Battery
    building in Tokyo, Japan
  • No.6 Battery
    island in Japan
  • Bull Sand Fort
    sea fort in Humber estuary, Easington, East Riding of Yorkshire, England, UK
  • El Cañuelo
    fortress in San Juan, Puerto Rico
  • Flakfortet
    Danish sea fort
  • Fort Carroll
    historic fort in Maryland, USA
  • Fort Heath
    US seacoast military installation for defense
  • Fort Louvois
    island in France
  • Fort Mahon
    fort located on the coast of the Strait of Dover, northern France
  • Fort of Saint Nicholas
    fortification in Rhodes, Greece
  • Fort São Lourenço
    for on the Island of Mozambique
  • Fortifications des îles Saint-Marcouf
  • Haile Sand Fort
    sea fort in Humber estuary, Tetney, East Lindsey, Lincolnshire, England, UK
  • Humber Forts
    two sea forts in the Humber Estuary in Northern England, UK
  • îles Saint-Marcouf
    group of two small islands off the coast of Normandy, France
  • Kolaba Fort
    building in India
  • Krepost Sveaborg naval front
  • Mellemfort
  • Middelgrundsfortet
    island in Denmark
  • Murud-Janjira
    Marine fort
  • Padmadurg
    building in India
  • Pampus
    island in the Netherlands
  • Peñón de Alhucemas
    island in Spain
  • Peñón de Vélez de la Gomera
    Spanish peninsula claimed by Morocco
  • Pope's Eye
    uncompleted foundation for an island fort at Port Philip, Victoria, Australia
  • Prøvestenen
    former naval fort off Copenhagen, Denmark.
  • Sindhudurg Fort
    Island fort in Arabian Sea off the coast of Western India
  • South Channel Fort
    island in Victoria, Australia
  • Trekroner Fort
    ancient monument in Copenhagen Municipality (151218)
  • Rocca a Mare
    fortress in Heraklion, Crete, Greece
  • São Marcelo Fort
    well listed by the Institute of Artistic and Cultural Heritage of Bahia in the city of Salvador, Bahia
  • New Elfsborg Fortress
    fortress built to defend the city Gothenburg against the Danish fleet
  • Dalarö Fort
    it was intended to protect the inlet to the Stockholm archipelago.
  • Scola Tower
    sea fort in Italy
  • Suomenlinna
    sea fortress by Helsinki, Finland
  • Vijaydurg Fort
    fort located in Vijaydurg
  • Fort Denison
    heritage-listed former penal site and defensive facility in Sydney Harbour, Australia  
  • Fort Boyard
    fort in Charente-Maritime, France
  • Fort Sumter
    fort in Charleston, South Carolina  
  • Fort Alexander I
    fort near Kronstadt
  • Fort Jefferson
    fortified island in Florida, USA  
  • Bréhon Tower
    sea fort in Guernsey
  • No Man's Land Fort
    Grade II listed sea fort in the Solent, UK
  • St Helens Fort
    sea fort with lighthouse in the Solent close to the Isle of Wight, England, UK
  • Spitbank Fort
    sea fort located in the Solent, near Portsmouth, England  
  • Horse Sand Fort
    sea fort in the Solent off Portsmouth, Hampshire, England, UK
  • Dragør Fort
    ancient monument in Dragør Municipality (190217)
  • Nab Tower
    lighthouse east of Isle of Wight, UK
1890-12-01T00:00:00Z
1890-12-01T00:00:00Z
1942-01-01T00:00:00Z
1942-01-01T00:00:00Z
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Dalarö Tukholman saaristossaDalarö Tukholman saaristossa
Bastion of Five Brothers 15Bastion of Five Brothers 15
L00 355 Forte Sant’AndreaL00 355 Forte Sant’Andrea
    TypeSubtypeDateDescriptionNotesSource
    classgroup1890Japanese sea fortsea fort, artificial islandWikidata
    classgroup1942Maunsell fortsea fort, fortified towerWikidata
    siteartillery battery1854No.3 Batteryartificial island, sea fort, daibaWikidata
    siteartillery battery1854No.6 Batterysea fort, daiba, artificial islandWikidata
    sitefortBull Sand Fortsea fortWikidata
    sitefortEl Cañuelosea fortWikidata
    sitefortFlakfortetsea fort, artificial islandWikidata
    sitefortFort Carrollsea fortWikidata
    sitefortFort Heathsea fortWikidata
    sitefortFort Louvoissea fort, fort, tidal islandWikidata
    sitefortFort Mahonsea fort, fortWikidata
    sitefortFort of Saint Nicholassea fortWikidata
    sitefortFort São Lourençosea fort, cultural heritageWikidata
    sitefortFortifications des îles Saint-Marcoufsea fortWikidata
    sitefortHaile Sand Fortsea fortWikidata
    sitefortHumber Fortssea fortWikidata
    sitefortîles Saint-Marcoufsea fort, archipelagoWikidata
    sitefortKolaba Fortsea fortWikidata
    sitefortKrepost Sveaborg naval frontsea fortWikidata
    sitefortMellemfortsea fortWikidata
    sitefortMiddelgrundsfortetsea fort, ancient monument, artificial islandWikidata
    sitefortMurud-Janjirasea fortWikidata
    sitefortPadmadurgsea fortWikidata
    sitefortPampussea fort, fort, museum, island, artificial islandWikidata
    sitefortPeñón de Alhucemassea fort, islandWikidata
    sitefortPeñón de Vélez de la Gomerasea fort, disputed territory, peninsula, islandWikidata
    sitefortPope's Eyesea fort, fixed constructionWikidata
    sitefortPrøvestenensea fort, destroyed building or structure, ancient monumentWikidata
    sitefortSindhudurg Fortsea fortWikidata
    sitefortSouth Channel Fortsea fort, islandWikidata
    sitefortTrekroner Fortsea fortWikidata
    sitefort1523Rocca a Maresea fortWikidata
    sitefort1623São Marcelo Forthistoric site, museum, cultural heritage, sea fortWikidata
    sitefort1653New Elfsborg Fortressheritage site in Sweden, sea fort, tourist attraction, fortressWikidata
    sitefort1698Dalarö FortBockholmen Hav & Restaurang, heritage site in Sweden, sea fort, tourist attractionWikidata
    sitefort1700Scola Towersea fort, towerWikidata
    sitefort1748SuomenlinnaEhrensvärd Society, fortress island, sea fort, fortressWikidata
    sitefort1756Vijaydurg Fortsea fortWikidata
    sitefort1788Fort Denisonsea fort, Government of New South Wales, military museum, Martello tower, islandWikidata
    sitefort1801Fort Boyardsea fortWikidata
    sitefort1811Fort SumterPassport to Your National Parks cancellation location, sea fortWikidata
    sitefort1845Fort Alexander Isea fort, architectural landmarkWikidata
    sitefort1847Fort Jeffersonsea fort, Union Army, islandWikidata
    sitefort1856Bréhon Towersea fort, lighthouseWikidata
    sitefort1867No Man's Land Fortsea fortWikidata
    sitefort1867St Helens Fortsea fort, lighthouseWikidata
    sitefort1887Spitbank Fortsea fortWikidata
    sitefort1888Horse Sand Fortsea fortWikidata
    sitefort1915Dragør Fortsea fort, artificial islandWikidata
    sitefort1918Nab Towersea fort, Trinity House, lighthouseWikidata
    commonsimageDalarö Tukholman saaristossa Commons
    commonsimageBastion of Five Brothers 15 Commons
    commonsimageL00 355 Forte Sant’Andrea Commons