A blockhouse is a small fortification, usually consisting of one or more rooms with loopholes, allowing its defenders to fire in various directions. It is usually an isolated fort in the form of a single building, serving as a defensive strong point against any enemy that does not possess siege equipment or, in modern times, artillery, air force or cruise missiles. A fortification intended to resist these weapons is more likely to qualify as a fortress or a redoubt, or in modern times, be an underground bunker. However, a blockhouse may also refer to a room within a larger fortification, usually a battery or redoubt.
A casemate is a fortified gun emplacement or armored structure from which guns are fired, in a fortification, warship, or armoured fighting vehicle.
The Merville Gun Battery is a decommissioned coastal fortification in Normandy, France, which was built as part of the Germans' Atlantic Wall to defend continental Europe from Allied invasion. It was a particularly heavily fortified position and one of the first places to be attacked by Allied forces during the Normandy Landings commonly known as D-Day. A British force under the command of Lieutenant Colonel Terence Otway succeeded in capturing this position, suffering heavy casualties.
The 240 mm howitzer M1, popularly nicknamed the "Black Dragon", was a towed howitzer used by the United States Army. The 240 mm M1 was designed to replace the World War I era 240 mm howitzer M1918, which was based on a 1911 French design and was outdated by World War II.
The Dover Strait coastal guns were long-range coastal artillery batteries that were sited on both sides of the English Channel during the Second World War. The British built several gun positions along the coast of Kent, England while the Germans fortified the Pas-de-Calais in occupied France. The Strait of Dover was strategically important because it is the narrowest part of the English channel. Batteries on both sides attacked shipping as well as bombarding the coastal towns and military installations. The German fortifications would be incorporated into the Atlantic Wall which was built between 1942 and 1944.
The Fort Hommet 10.5 cm coastal defence gun casemate bunker is a fully restored gun casemate that was part of Fortress Guernsey constructed by the forces of Nazi Germany between 1940 and 1945.
The Longues-sur-Mer battery is a World War II German coastal artillery battery approximately 1 km (0.62 mi) north of the village of Longues-sur-Mer in Normandy, France. The battery is sited on a 60 m (200 ft) cliff overlooking the Baie de Seine and formed a part of Germany's Atlantic Wall coastal fortifications, between the Allied landing sectors of Gold Beach and Omaha Beach.
The Crisbecq Battery was a German World War II artillery battery constructed by the Todt Organization near the French village of Saint-Marcouf in the department of Manche in the north-east of Cotentin peninsula in Normandy. It formed a part of Nazi Germany's Atlantic Wall coastal fortifications. The main armament were three Czech 21 cm Kanone 39 canons, two of which housed in heavily fortified casemates up to 10 feet thick of concrete. The battery, with a range of 27–33 kilometers, could cover the beaches between Saint-Vaast-la-Hougue and Pointe du Hoc.
The Defensive Organization of Corsica was the French military organization that in 1940 was responsible for the defense of the French island of Corsica against a potential invasion by Fascist Italy. As part of the overall effort to fortify France's borders which included the Maginot Line, the fixed Corsican defenses were constructed in parallel with the Maginot Line, using the same organizational structure and similar designs, albeit scaled back in size, cost and fighting power. The Corsican defenses were designed to deter an Italian landing on the south end of Corsica, and to support artillery batteries capable of controlling the Strait of Bonifacio between Corsica and the Italian island of Sardinia, separated by only twelve kilometers. As World War II unfolded, no attempt was made by Italian forces to mount an opposed landing on Corsica. The island was instead occupied in November 1942. In 1943 Corsica saw fighting when German forces moved from Sardinia. Most of the fortified positions remain to the present day.
The Battle of Merville Gun Battery was a series of British assaults beginning 6 June 1944, as part of Operation Tonga, part of the Normandy landings, during the Second World War. Allied intelligence believed the Merville Gun Battery was composed of heavy-calibre 150 mm (5.9 in) guns that could threaten the British landings at Sword Beach, only 8 miles (13 km) away.
The Todt Battery, also known as Batterie Todt, was a battery of coastal artillery built by Nazi Germany during World War II, located in the hamlet of Haringzelles, Audinghen, near Cape Gris-Nez, Pas de Calais, France.
The Channel Islands Occupation Society (CIOS) is a voluntary organisation that seeks to study all aspects of the German occupation of the Channel Islands and to raise awareness and educate the public about the occupation during the Second World War. There are two branches, one in Jersey and the other in Guernsey, that take turns in publishing the Channel Islands Occupation Review. The CIOS manages many German fortifications and archives on both islands.
Battery Moltke is an uncompleted World War II former coastal artillery battery in St Ouen in north-west Jersey. It was constructed by Organisation Todt for the Wehrmacht during the occupation of the Channel Islands.
The Hillman Fortress was a German bunker complex and command post built during the Second World War and located near Colleville-Montgomery in Normandy, France. The bunker complex, designated as Hill 61 and codenamed Hillman by the British, was attacked on 6 June 1944 by the Suffolk Regiment and the fortress finally surrendered the following morning. The delay in taking the bunker complex has been cited as a reason for the Allies not completing their major D-Day objective of taking Caen.
The Houlgate battery was a World War II German artillery battery constructed close to the French village of Houlgate in the Calvados department in the Lower Normandy region. Built into the top of a 300 ft (91 m) cliff, the bunker complex was created to protect the western bank of the mouth of the River Seine and was 10 mi (16 km) east of the Normandy landing beach Sword which it shelled. The former fire control post has been turned into an orientation table. The battery is 8 km west of the Mont Canisy battery.
The Mont Canisy battery was a World War II German artillery battery constructed close to the French village of Benerville-sur-Mer in the Calvados department in the Lower Normandy region. Located on the highest ground in Normandy, the vantage point overlooks the Côte Fleurie. The bunker complex was constructed between 1941 and 1944 to protect the River Seine estuary and the port of Le Havre. It was a large artillery bunker complex between Cherbourg and Le Havre ; 4 x 105's at La Martiniere; 4 x 150mm's at Foucher's farm). The battery is 8 km (5.0 mi) east of the Houlgate battery.
After the Wehrmacht occupied the Channel Islands on 30 June 1940, they assessed the existing defences to determine if they would be of use. The Germans found the Islands' fortifications antiquated and woefully inadequate for modern warfare.
Apart from a Roman Fort, there were very few fortifications in Alderney until the mid 19th century. These were then modified and updated in the mid 20th Century by Germans during the occupation period. Alderney at 8 km2 is now one of the most fortified places in the world.
The Azeville battery was a World War II German artillery battery constructed close to the French village of Azeville in the Manche department in the Normandy region in northwestern France. It formed a part of Germany's Atlantic Wall coastal fortifications and was involved in the Normandy landings and shelled the US landing beach UTAH for three days after D-Day, 6 June 1944. The battery was heavily bombed on 9 June 1944 and fell to the Americans the same day. The site is owned by the local council and one of the battery's gun casemates now houses a museum.
Amfreville battery was a World War II German artillery battery constructed close to the French village of Querqueville, 5 km (3.1 mi) west of Cherbourg Naval Base, in northwestern France. It formed part of Germany's Atlantic Wall coastal fortifications and protected the western entrance to the port of Cherbourg. The battery engaged British and US ships towards the end of June 1944 before the battery fell to advancing US forces on 26 June 1944.
