Project Hummerschere (English: Project Lobster Claw) was a construction project proposed by Nazi Germany's Kriegsmarine to expand the naval facilities on the island of Heligoland in the years leading up to World War II. Intended to create a large naval installation for operations in the North Sea, the plan involved expanding the island to its pre-1629 dimensions, restoring large areas which had been eroded by the sea. Construction was planned to more than double the usable area of both islands of Heligoland, allowing for the creation of a major naval base and Luftwaffe installation. [1]
Conceived by German Admiral Erich Raeder, the extensive project began in 1937. It was enthusiastically endorsed by Adolf Hitler, who personally inspected the construction in August 1938. After the onset of World War II the island became vulnerable to British air raids, and the project was abandoned as a result. [1]
The Battle of Heligoland Bight was the first Anglo-German naval battle of the First World War, fought on 28 August 1914, between ships of the United Kingdom and Germany. The battle took place in the south-eastern North Sea, when the British attacked German patrols off the north-west German coast. The German High Seas Fleet was in harbour on the north German coast while the British Grand Fleet was out in the northern North Sea. Both sides engaged in long-distance sorties with cruisers and battlecruisers, with close reconnaissance of the area of sea near the German coast—the Heligoland Bight—by destroyer.
Heligoland is a small archipelago in the North Sea. A part of the German state of Schleswig-Holstein since 1890, the islands were historically possessions of Denmark, then became the possessions of the United Kingdom from 1807 to 1890, and briefly managed as a war prize from 1945 to 1952.
The Imperial Japanese Navy was the navy of the Empire of Japan from 1868 to 1945, when it was dissolved following Japan's surrender in World War II. The Japan Maritime Self-Defense Force (JMSDF) was formed between 1952 and 1954 after the dissolution of the IJN.
The Heligoland–Zanzibar Treaty was an agreement signed on 1 July 1890 between Germany and the United Kingdom.
The Second Battle of Heligoland Bight, also the Action in the Helgoland Bight and the Zweite Seeschlacht bei Helgoland, was an inconclusive naval engagement fought between British and German squadrons on 17 November 1917 during the First World War.
Dogger Bank is a large sandbank in a shallow area of the North Sea about 100 kilometres (62 mi) off the east coast of England.
The Heligoland Bight, also known as Helgoland Bight, is a bay which forms the southern part of the German Bight, itself a bay of the North Sea, located at the mouth of the Elbe river. The Heligoland Bight extends from the mouth of the Elbe to the islands of Heligoland and lies between the East Frisian island of Wangerooge and the North Frisian peninsula of Eiderstedt.
Naval warfare in World War I was mainly characterised by blockade. The Allied powers, with their larger fleets and surrounding position, largely succeeded in their blockade of Germany and the other Central Powers, whilst the efforts of the Central Powers to break that blockade, or to establish an effective counter blockade with submarines and commerce raiders, were eventually unsuccessful. Major fleet actions were extremely rare and proved less decisive.
SMS Cöln was a Kolberg-class light cruiser of the German Kaiserliche Marine during the First World War. She had three sister ships, SMS Kolberg, Mainz, and Augsburg. She was built by the Germaniawerft in Kiel; her hull was laid down in 1908 and she was launched in June 1909. Cöln was commissioned into the High Seas Fleet in June 1911. She was armed with a main battery of twelve 10.5 cm SK L/45 guns and had a top speed of 25.5 kn. After her commissioning, she served with the II Scouting Group, part of the reconnaissance forces of the High Seas Fleet.
List auf Sylt is the northernmost municipality in Germany, located on the North Sea island of Sylt close to Denmark in the district of Nordfriesland in the state of Schleswig-Holstein.
The Raid on Cuxhaven was a British ship-based air-raid on the Imperial German Navy at Cuxhaven mounted on Christmas Day, 1914.
United States Naval Districts is a system created by the United States Navy to organize military facilities, numbered sequentially by geographic region, for the operational and administrative control of naval bases and shore commands in the United States and around the world. Established in 1903, naval districts became the foundational system for organizing U.S. naval forces ashore during the 20th century. The term "Naval" forces includes United States Marine Corps and current United States Coast Guard units.
is a municipality in the district of Nordfriesland, in Schleswig-Holstein, Germany. It is located on the southern headland of the island of Sylt. The municipality is part of the Amt Landschaft Sylt. The economy is dominated by tourism.
Naval Support Activity Bahrain is a United States Navy base, situated in the Kingdom of Bahrain and is home to U.S. Naval Forces Central Command and United States Fifth Fleet.
The High Seas Fleet was the battle fleet of the German Imperial Navy and saw action during the First World War. The formation was created in February 1907, when the Home Fleet was renamed as the High Seas Fleet. Admiral Alfred von Tirpitz was the architect of the fleet; he envisioned a force powerful enough to challenge the Royal Navy's predominance. Kaiser Wilhelm II, the German Emperor, championed the fleet as the instrument by which he would seize overseas possessions and make Germany a global power. By concentrating a powerful battle fleet in the North Sea while the Royal Navy was required to disperse its forces around the British Empire, Tirpitz believed Germany could achieve a balance of force that could seriously damage British naval hegemony. This was the heart of Tirpitz's "Risk Theory", which held that Britain would not challenge Germany if the latter's fleet posed such a significant threat to its own.
Heligoland Lighthouse is located on Germany's only offshore island, Heligoland. Constructed during World War II as an anti-aircraft tower, it was turned into a lighthouse in 1952. It features the strongest light on the German North Sea coast with a range of 28 nautical miles (52 km) so that it can be seen as far as on the East Frisian or the North Frisian islands and Halligen. The lighthouse is operated by the Tönning water and shipping authority.
The II Battle Squadron was a unit of the German High Seas Fleet before and during World War I. The squadron saw action throughout the war, including the Battle of Jutland on 31 May – 1 June 1916, where it formed the rear of the German line.
Operation Big Bang or British Bang was the explosive destruction of bunkers and other military installations on the island of Heligoland. The explosion used 7400 tons (6700 metric tons) of surplus World War II ammunition, which was placed in various locations around the island and detonated at 1 p.m. on 18 April 1947 by the Royal Navy. The energy released was 1.3×1013 J, or about 3.2 kilotons of TNT equivalent making it the largest artificial non-nuclear explosion at that time. The objective of the blast was to destroy the bunkers and military installations on the North Sea island of Heligoland, but due to the enormous amount of explosives it was foreseen that the entire island might be destroyed. The porous sandstone that makes up the island allowed the blast wave to escape so only the southern tip of the island was destroyed, but there was considerable damage to the northern tip.