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The First Battle of Heligoland Bight was the first naval battle of the First World War, fought on 28 August 1914, between the United Kingdom and Germany. The battle took place in the southeastern North Sea when the British attacked German patrols off the northwest German coast. The German High Seas Fleet remained largely in safe harbours on the north German coast while the British Grand Fleet remained in the northern North Sea. Both sides engaged in long-distance sorties with cruisers and battlecruisers, and close reconnaissance of the area of sea near the German coast—the Heligoland Bight—by destroyer. The British devised a plan to ambush German destroyers on their daily patrols. A British fleet of 31 destroyers and two cruisers under Commodore Reginald Tyrwhitt and submarines commanded by Commodore Roger Keyes was dispatched. They were supported at longer range by an additional six light cruisers commanded by William Goodenough, and five battlecruisers commanded by Vice Admiral David Beatty. Three German light cruisers and one destroyer were sunk. Three more light cruisers were damaged, 712 sailors killed, 530 injured and 336 taken prisoner. The British suffered one light cruiser and three destroyers damaged, 35 killed and 40 wounded. The battle was regarded as a great victory in Britain, where the returning ships were met by cheering crowds. Publicly, Vice Admiral Beatty was regarded as a hero, although he had taken little part in the action or planning of the raid, which was led by Commodore Tyrwhitt and conceived by himself and Keyes, who had persuaded the Admiralty to adopt it. However, the raid might have led to disaster had the additional forces under Beatty not been sent by Admiral John Jellicoe at the last minute. The effect upon the German government and in particular the Kaiser was to restrict the freedom of action of the German fleet, instructing it to remain in port and avoid any contact with superior forces for several months thereafter. ==Prelude== The battle took place less than a month after Britain's declaration of war against Germany on 5 August 1914. Initially, the war on land went badly for the French and their allies, with German forces invading France and an urgent need to gather all possible troops to send to France to resist them. The British government was in a position of having nothing but bad news, and looked to the navy, the largest in the world and traditionally the mainstay of British military power, for some success to report. British naval tactics had typically involved a close blockade of enemy ports, taking the fight to the enemy, and this had been the British plan for war against Germany up to 1913. Such an approach was still expected by the British population. However, it was realised that the advent of submarines armed with torpedoes and mines hidden in open sea meant that any operations involving stationing capital ships near enemy ports would place them at great risk of surprise attack and loss. Then, there was the issue of fuel for the ships: traditional sail-powered ships did not need refueling, but powered ships, obliged to keep moving to reduce their vulnerability as sitting targets, were continuously using fuel, and had to return to home ports every few days.〔'Castles' pp. 72–3.〕 The German fleet had expected that Britain would adopt its traditional approach, and had prepared by investing in submarines and coastal defences. The main body of the German navy—the High Seas Fleet—was smaller than the British Grand Fleet stationed around home waters and could not expect victory in a head to head fight. It therefore adopted a strategy of waiting in defended home ports for opportunities to attack the larger British force when the anticipated attack came. The British, appreciating this situation chose to adopt a strategy of patrolling the North Sea rather than waters close to Germany. Any German ships seeking to leave their home ports on the German coast must either pass the -wide Straits of Dover, defended by British submarines and mines, or the North Sea, where the British fleet was stationed around its main wartime base at Scapa Flow in Scotland, defending the -wide narrowest point between Britain and Norway. This led to a standoff, with neither fleet doing more than hold the other endlessly waiting. The German ships were contained in an area where they could not attack merchant shipping arriving on the west of Britain, which was vital for British survival. To encourage the German fleet to stay at home, the British would make occasional forays with the Grand Fleet and patrol with smaller cruiser and battlecruiser squadrons.〔'Castles' p. 73.〕 The bulk of the British Expeditionary Force was transported to France between 12 and 21 August. This operation was protected from German attack by British destroyers and submarines patrolling Heligoland Bight, which German ships would have to cross when leaving their home ports. The Grand Fleet remained in the centre of the North Sea ready to move south should any German attack commence, but none came. Although the German army had anticipated a rapid transfer of the British army to aid France, German naval planning had anticipated it would take longer for the British to organise. Thus they were caught by surprise when it commenced, with submarines which might have been ordered to attack the British transports away on patrols seeking the main British fleet.〔'Castles' p. 80.〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Battle of Heligoland Bight (1914)」の詳細全文を読む スポンサード リンク
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