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COAST DEFENCE CHAIN HOME LOW STATION * |
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| A radar station with sets operating on a wavelenght of 1.5m established to provide radar plotting of both shipping and aircraft movements. |
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EMERGENCY COAST DEFENCE BATTERY * |
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| A coastal battery constructed at short notice usually mounting a variety of artillery pieces. |
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CIVIL DEFENCE TRAINING CENTRE * |
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| A building or site used to train civilians and members of the services in the skills designed to protect the civilian population during times of war. Could also be used during times of national emergency. |
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CIVIL DEFENCE TRAINING GROUND * |
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| An area used for the training of personnel in civil defence procedures. |
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EXTENDED DEFENCE OFFICER POST * |
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| An observation post for a naval officer in charge of a marine minefield. |
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ANTI AIRCRAFT DEFENCE SITE * |
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| Sites, buildings and structures for the control and mounting of anti aircraft artillery. Also, structures for passive or indirect defence against enemy aircraft. |
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ANTI INVASION DEFENCE SITE * |
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| Sites, buildings and structures associated with the prevention of an invasion by a hostile force. |
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CIVIL DEFENCE HEADQUARTERS * |
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| A building used for the daily administration of Civil Defence activities. |
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MILITARY COASTAL DEFENCES * |
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| Buildings, sites and structures associated with the defence of the coastline from foreign invasion. |
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PASSIVE AIR DEFENCE SITE * |
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| Sites, buildings or structures involved in passive air defence, usually by forcing hostile aircraft to fly high or drop their bombs on the wrong targets. Use more specific term. |
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ACTIVE AIR DEFENCE SITE * |
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| A site equipped for active defensive action against an airborne enemy assault. |
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ANTI SUBMARINE DEFENCE * |
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| Second World War defence work usually consisting of securinng points for a boom defence, associated gun, and searchlight, emplacements |
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CIVIL DEFENCE BUILDING * |
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| A building used to coordinate civil defence in times of war. Can also be utilized as aid centres in times of national emergency. |
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AIRFIELD DEFENCE SITE * |
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| A site or building associated with active or passive defence of the landing ground and buildings of an airfield. |
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BEACH DEFENCE BATTERY * |
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| Gun battery built specifically to mount short range weapons to defend a beach against an attempted landing. |
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CLOSE DEFENCE BATTERY * |
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| A coastal battery designed for use in short range engagements with enemy vessels, minelayers, blockships ad torpedo craft. |
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CIVIL DEFENCE GARAGE * |
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| A garage for the storage and maintenance of motor vehicles, such as ambluances and fire engines, used for civil defence purposes. |
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COASTAL DEFENCE SITE * |
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| Sites, buildings and structures for the defence of the coastline from sea and air invasion. |
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BEACH DEFENCE LIGHT * |
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| A searchlight battery used to light a beach. |
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DEFENCE OBSTRUCTION * |
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| Sites and structures, often un-manned, intended to impede or confuse enemy forces. |
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CIVIL DEFENCE SITE * |
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| Sites and buildings used in the coordination of the defence of the civilian population during times of war. Could also be used during times of national emergency. |
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RIVER DEFENCE SITE * |
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| A fortified river or river bank forming part of the anti invasion infrastructure. |
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AIR DEFENCE SITE * |
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| A site equipped for passive or active defence against an airborne enemy assault. |
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FRONTIER DEFENCE * |
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| A system of fortifications constructed along a national frontier to contain the local population, as well as keep out undesirable raiders eg. Offa's Dyke. Use with more specific monument type where known. |
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FLOOD DEFENCES * |
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| Manmade constructions used to prevent water flooding the surrounding area. Often taking the form of a bank or wall but may be more elaborate e.g. the Thames Barrier. |
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RIVER DEFENCES * |
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| Manmade constructions used to prevent rivers breaking their banks and flooding the surrounding area with water. Often taking the form of a bank or wall. |
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BEACH DEFENCE * |
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| Obstacles such as scaffolding, barbed wire and concrete blocks or cylinders placed on a beach to impede the progress of enemy soldiers, vehicles or watercraft landing from the sea. |
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TOWN DEFENCES * |
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| Defensive fortifications such as ramparts, ditches and stone walls, built to defend a town or city. |
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DEFENCE LINE * |
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| A system of defensive works such as anti-tank obstacles, ditches and pillboxes, designed to stop the advance of an enemy. Defence lines were constructed across and around strategic areas of ground and sites such as industrial towns. |
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DEFENCE WORK * |
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| General term describing any defence work where no more specific term is applicable. |
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SEA DEFENCES * |
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| Non-military maritime flood and erosion defences. |
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DEFENCE * |
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| This is the top term for the class. See DEFENCE Class List for narrow terms. |
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