The High Seas Fleet (Hochseeflotte) 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 (Heimatflotte) 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 Navys 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 Tirpitzs "Risk Theory," which held that Britain would not challenge Germany if the latters fleet posed such a significant threat to its own.
The primary component of the Fleet was its battleships, typically organized in eight-ship squadrons, though it also contained various other formations, including the I Scouting Group. At its creation in 1907, the High Seas Fleet consisted of two squadrons of battleships, and by 1914, a third squadron had been added. The dreadnought revolution in 1906 greatly affected the composition of the fleet; the twenty-four pre-dreadnoughts in the fleet were rendered obsolete and required replacement. Enough dreadnoughts for two full squadrons were completed by the outbreak of war in mid 1914; the eight most modern pre-dreadnoughts were used to constitute a third squadron. Two additional squadrons of older vessels were mobilized at the onset of hostilities, though by the end of the conflict, these formations were disbanded.
The fleet conducted a series of sorties into the North Sea during the war designed to lure out an isolated portion of the numerically superior British Grand Fleet. These operations frequently used the fast battlecruisers of the I Scouting Group to raid the British coast as the bait for the Royal Navy. These operations culminated in the Battle of Jutland, on 31 May–1 June 1916, where the High Seas Fleet confronted the whole of the Grand Fleet. The battle was inconclusive, but the British won strategically, as it convinced Admiral Reinhard Scheer, the German fleet commander, that even a highly favorable outcome to a fleet action would not secure German victory in the war. Scheer and other leading admirals therefore advised the Kaiser to order a resumption of the unrestricted submarine warfare campaign. The primary responsibility of the High Seas Fleet in 1917 and 1918 was to secure the German naval bases in the North Sea for U-boat operations. Nevertheless, the fleet continued to conduct sorties into the North Sea and detached units for special operations in the Baltic Sea against the Russian Baltic Fleet. Following the German defeat in November 1918, the Allies interned the bulk of the High Seas Fleet in Scapa Flow, where it was ultimately scuttled by its crews in June 1919, days before the belligerents signed the Treaty of Versailles.
In 1898, Admiral Alfred von Tirpitz became the State Secretary for the Imperial Navy Office (Reichsmarineamt—RMA); Tirpitz was an ardent supporter of naval expansion. During a speech in support of the First Naval Law on 6 December 1897, Tirpitz stated that the navy was "a question of survival" for Germany. He also viewed Great Britain, with its powerful Royal Navy, as the primary threat to Germany. In a discussion with the Kaiser during his first month in his post as State Secretary, he stated that "for Germany the most dangerous naval enemy at present is England." Tirpitz theorized that an attacking fleet would require a 33 percent advantage in strength to achieve victory, and so decided that a 2:3 ratio would be required for the German navy. For a final total of 60 German battleships, Britain would be required to build 90 to meet the 2:3 ratio envisioned by Tirpitz.
The Royal Navy had heretofore adhered to the so-called "two-power standard," first formulated in the Naval Defence Act of 1889, which required a larger fleet than those of the next two largest naval powers combined. The crux of Tirpitzs "risk theory" was that by building a fleet to the 2:3 ratio, Germany would be strong enough that even in the event of a British naval victory, the Royal Navy would incur damage so serious as to allow the third-ranked naval power to rise to preeminence. Implicit in Tirpitzs theory was the assumption that the British would adopt an offensive strategy that would allow the Germans to use mines and submarines to even the numerical odds before fighting a decisive battle between Heligoland and the Thames. Tirpitz in fact believed Germany would emerge victorious from a naval struggle with Britain, as he believed Germany to possess superior ships manned by better-trained crews, more effective tactics, and led by more capable officers.
In his first program, Tirpitz envisioned a fleet of nineteen battleships, divided into two eight-ship squadrons, one ship as a flagship, and two in reserve. The squadrons were further divided into four-ship divisions. This would be supported by the eight Siegfried- and Odin classes of coastal defense ships, six large and eighteen small cruisers, and twelve divisions of torpedo boats, all assigned to the Home Fleet (Heimatflotte). This fleet was secured by the First Naval Law, which passed in the Reichstag on 28 March 1898. Construction of the fleet was to be completed by 1 April 1904. Rising international tensions, particularly as a result of the outbreak of the Boer War in South Africa and the Boxer Rebellion in China, allowed Tirpitz to push through an expanded fleet plan in 1900. The Second Naval Law was passed on 14 June 1900; it doubled the size of the fleet to 38 battleships and 20 large and 38 small cruisers. Tirpitz planned an even larger fleet. As early as September 1899, he had informed the Kaiser that he sought at least 45 battleships, and potentially might secure a third double-squadron, for a total strength of 48 battleships.
During the initial period of German naval expansion, Britain did not feel particularly threatened. The Lords of the Admiralty felt the implications of the Second Naval Law were not a significantly more dangerous threat than the fleet set by the First Naval Law; they believed it was more important to focus on the practical situation rather than speculation on future programs that might easily be reduced or cut entirely. Segments of the British public, however, quickly seized on the perceived threat posed by the German construction programs. Despite their dismissive reaction, the Admiralty resolved to surpass German battleship construction. Admiral John Fisher, who became the First Sea Lord and head of the Admiralty in 1904, introduced sweeping reforms in large part to counter the growing threat posed by the expanding German fleet. Training programs were modernized, old and obsolete vessels were discarded, and the scattered squadrons of battleships were consolidated into four main fleets, three of which were based in Europe. Britain also made a series of diplomatic arrangements, including an alliance with Japan that allowed a greater concentration of British battleships in the North Sea.
Fishers reforms caused serious problems for Tirpitzs plans; he counted on a dispersal of British naval forces early in a conflict that would allow Germanys smaller but more concentrated fleet to achieve a local superiority. Tirpitz could also no longer depend on the higher level of training in both the German officer corps and the enlisted ranks, nor the superiority of the more modern and homogenized German squadrons over the heterogeneous British fleet. In 1904, Britain signed the Entente cordiale with France, Britains primary naval rival. The destruction of two Russian fleets during the Russo-Japanese War in 1905 further strengthened Britains position, as it removed the second of her two traditional naval rivals. These developments allowed Britain to discard the "two power standard" and focus solely on out-building Germany. In October 1906, Admiral Fisher stated "our only probable enemy is Germany. Germany keeps her whole Fleet always concentrated within a few hours of England. We must therefore keep a Fleet twice as powerful concentrated within a few hours of Germany."
The most damaging blow to Tirpitzs plan came with the launch of HMS Dreadnought in February 1906. The new battleship, armed with a main battery of ten 12-inch (30 cm) guns, was considerably more powerful than any battleship afloat. Ships capable of battle with Dreadnought would need to be significantly larger than the old pre-dreadnoughts, which increased their cost and necessitated expensive dredging of canals and harbors to accommodate them. The German naval budget was already stretched thin; without new funding, Tirpitz would have to abandon his challenge to Britain. As a result, Tirpitz went before the Reichstag in May 1906 with a request for additional funding. The First Amendment to the Second Naval Law was passed on 19 May and appropriated funding for the new battleships, as well as for the dredging required by their increased size.
The Reichstag passed a second amendment to the Naval Law in March 1908 to provide an additional billion marks to cope with the growing cost of the latest battleships. The law also reduced the service life of all battleships from 25 to 20 years, which allowed Tirpitz to push for the replacement of older vessels earlier. A third and final amendment was passed in May 1912 represented a compromise between Tirpitz and moderates in parliament. The amendment authorized three new battleships and two light cruisers. The amendment called for the High Seas Fleet to be equipped with three squadrons of eight battleships each, one squadron of eight battlecruisers, and eighteen light cruisers. Two 8-ship squadrons would be placed in reserve, along with two armored and twelve light cruisers. By the outbreak of war in August 1914, only one eight-ship squadron of dreadnoughts—the I Battle Squadron—had been assembled with the Nassau and Helgoland-class battleships. The second squadron of dreadnoughts—the III Battle Squadron—which included four of the Kaiser-class battleships, was only completed when the four König-class battleships entered service by early 1915. As a result, the third squadron—the II Battle Squadron remained composed of pre-dreadnoughts through 1916.
Before the 1912 naval law was passed, Britain and Germany attempted to reach a compromise with the Haldane Mission, led by the British War Minister Richard Haldane. The arms reduction mission ended in failure, however, and the 1912 law was announced shortly thereafter. The Germans were aware at as early as 1911, the Royal Navy had abandoned the idea of a decisive battle with the German fleet, in favor of a distant blockade at the entrances to the North Sea, which the British could easily control due to their geographical position. There emerged the distinct possibility that the German fleet would be unable to force a battle on its own terms, which would render it militarily useless. When the war came in 1914, the British did in fact adopt this strategy. Coupled with the restrictive orders of the Kaiser, who preferred to keep the fleet intact to be used as a bargaining chip in the peace settlements, the ability of the High Seas Fleet to affect the military situation was markedly reduced.
The German Navys pre-war planning held that the British would be compelled to mount either a direct attack on the German coast to defeat the High Seas Fleet, or to put in place a close blockade. Either course of action would permit the Germans to whittle away at the numerical superiority of the Grand Fleet with submarines and torpedo boats. Once a rough equality of forces could be achieved, the High Seas Fleet would be able to attack and destroy the British fleet. Implicit in Tirpitzs strategy was the assumption that German vessels were better-designed, had better-trained crews, and would be employed with superior tactics. In addition, Tirpitz assumed that Britain would not be able to concentrate its fleet in the North Sea, owing to the demands of its global empire. At the start of a conflict between the two powers, the Germans would therefore be able to attack the Royal Navy with local superiority.
The British, however, did not accommodate Tirpitzs projections; from his appointment as the First Sea Lord in 1904, Fisher began a major reorganization of the Royal Navy. He concentrated British battleship strength in home waters, launched the Dreadnought revolution, and introduced rigorous training for the fleet personnel. In 1912, the British concluded a joint defense agreement with France that allowed the British to concentrate in the North Sea while the French defended the Mediterranean. Worse still, the British began developing the strategy of the distant blockade of Germany starting in 1904; this removed the ability of German light craft to reduce Britains superiority in numbers and essentially invalidated German naval planning before the start of World War I.
The primary base for the High Seas Fleet in the North Sea was Wilhelmshaven on the western side of the Jade Bight; the port of Cuxhaven, located on the mouth of the Elbe, was also a major base in the North Sea. The island of Heligoland provided a fortified forward position in the German Bight.Kiel was the most important base in the Baltic, which supported the forward bases at Pillau and Danzig. The Kaiser Wilhelm Canal through Schleswig-Holstein connected the Baltic and North Seas and allowed the German Navy to quickly shift naval forces between the two seas. In peacetime, all ships on active duty in the High Seas Fleet were stationed in Wilhelmshaven, Kiel, or Danzig. Germany possessed only one major overseas base, at Kiautschou in China, where the East Asia Squadron was stationed.
Steam ships of the period, which burned coal to fire their boilers, were naturally tied to coaling stations in friendly ports. The German Navy lacked sufficient overseas bases for sustained operations, even for single ships operating as commerce raiders. The Navy experimented with a device to transfer coal from colliers to warships while underway in 1907, though the practice was not put into general use. Nevertheless, German capital ships had a cruising range of at least 4,000 nmi (7,400 km; 4,600 mi), more than enough to operate in the Atlantic Ocean.[Note 1]
In 1897, the year Tirpitz came to his position as State Secretary of the Navy Office, the Imperial Navy consisted of a total of around 26,000 officers, petty officers, and enlisted men of various ranks, branches, and positions. By the outbreak of war in 1914, this had increased significantly to about 80,000 officers, petty officers, and men. Capital ships were typically commanded by a Kapitän zur See (Captain at Sea) or Korvettenkapitän (corvette captain). Each of these ships typically had a total crew in excess of 1,000 officers and men; the light cruisers that screened for the fleet had crew sizes between 300 and 550. The fleet torpedo boats had crews of about 80 to 100 officers and men, though some later classes approached 200.
In early 1907, enough battleships—of the Braunschweig and Deutschland classes—had been constructed to allow for the creation of a second full squadron. On 16 February 1907, Kaiser Wilhelm renamed the Home Fleet the High Seas Fleet. Admiral Prince Heinrich of Prussia, Wilhelm IIs brother, became the first commander of the High Seas Fleet; his flagship was SMS Deutschland. While on a peacetime footing, the Fleet conducted a routine pattern of training exercises, with individual ships, with squadrons, and with the combined fleet, throughout the year. The entire fleet conducted several cruises into the Atlantic Ocean and the Baltic Sea. Prince Henry was replaced in late 1909 by Vice Admiral Henning von Holtzendorff, who served until April 1913. Vice Admiral Friedrich von Ingenohl, who would command the High Seas Fleet in the first months of World War I, took command following the departure of Vice Admiral von Holtzendorff.SMS Friedrich der Grosse replaced Deutschland as the fleet flagship on 2 March 1913.
Despite the rising international tensions following the assassination of Archduke Franz Ferdinand on 28 June, the High Seas Fleet began its summer cruise to Norway on 13 July. During the last peacetime cruise of the Imperial Navy, the fleet conducted drills off Skagen before proceeding to the Norwegian fjords on 25 July. The following day the fleet began to steam back to Germany, as a result of Austria-Hungarys ultimatum to Serbia. On the 27th, the entire fleet assembled off Cape Skudenes before returning to port, where the ships remained at a heightened state of readiness. War between Austria-Hungary and Serbia broke out the following day, and in the span of a week all of the major European powers had joined the conflict.
The High Seas Fleet conducted a number of sweeps and advances into the North Sea. The first occurred on 2–3 November 1914, though no British forces were encountered. Admiral von Ingenohl, the commander of the High Seas Fleet, adopted a strategy in which the battlecruisers of Rear Admiral Franz von Hippers I Scouting Group raided British coastal towns to lure out portions of the Grand Fleet where they could be destroyed by the High Seas Fleet. The raid on Scarborough, Hartlepool and Whitby on 15–16 December 1914 was the first such operation. On the evening of 15 December, the German battle fleet of some twelve dreadnoughts and eight pre-dreadnoughts came to within 10 nmi (19 km; 12 mi) of an isolated squadron of six British battleships. However, skirmishes between the rival destroyer screens in the darkness convinced von Ingenohl that he was faced with the entire Grand Fleet. Under orders from the Kaiser to avoid risking the fleet unnecessarily, von Ingenohl broke off the engagement and turned the fleet back toward Germany.
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