The Battle of Coronel was a First World War naval battle that led to an Imperial German Navy victory over the Royal Navy on 1 November 1914, off the coast of central Chile near the city of Coronel. The East Asia Squadron (German: Ostasiengeschwader or Kreuzergeschwader) of the Imperial German Navy (Kaiserliche Marine) led by Vice-Admiral Graf Maximilian von Spee met and overpowered a British squadron commanded by Rear-Admiral Sir Christopher Cradock.
The engagement probably took place as a result of misunderstandings. Neither admiral expected to meet the other in full force. Once the two met, Cradock understood his orders were to fight to the end, despite the odds being heavily against him. Although Spee had an easy victory, destroying two enemy armoured cruisers for just three men injured, the engagement also cost him almost half his supply of ammunition, which was irreplaceable.
Shock at the British losses led the Admiralty to send more ships, including two modern battlecruisers, which in turn destroyed Spee and the majority of his squadron on 8 December at the Battle of the Falkland Islands.
Background
At the outbreak of war the Royal Navy and the Royal Australian Navy, with assistance from New Zealand and Japanese naval and land forces in the Far East, had captured the German colonies of Kaiser-Wilhelmsland, Yap, Nauru, and Samoa, instead of searching for the German East Asia Squadron commanded by Vice-Admiral Maximilian von Spee, which had abandoned its base at the German concession at Tsingtao in the expectation of war breaking out with Japan. The East Asia Squadron rendezvoused at Pagan Island in the Marianas in early August 1914. Eventually, recognising the German squadron's potential for disrupting trade in the Pacific, the British Admiralty decided to destroy it and searched the western Pacific Ocean after the East Asia Squadron had conducted the Bombardment of Papeete (22 September 1914), where a French steamer reported its presence.
On 4 October 1914, the British learned from an intercepted radio message that Spee planned to attack shipping on the trade routes along the west coast of South America. Having correctly guessed the intention of the German commander, Rear-Admiral Sir Christopher Cradock patrolled the area with a squadron consisting of the armoured cruisers HMS Good Hope (flagship) and HMS Monmouth, the modern light cruiser HMS Glasgow, and the armed merchantman HMS Otranto. The Admiralty had planned to reinforce the squadron by sending the newer and more powerful armoured cruiser HMS Defence from the Mediterranean, but temporarily diverted this ship to patrol the western Atlantic. Defence reached Montevideo two days after the battle, and Cradock instead received the pre-dreadnought battleship HMS Canopus.
The change of plan meant that the British squadron comprised obsolete or lightly armed vessels, crewed in the case of Good Hope by inexperienced naval reservists. Monmouth and Good Hope had a large number of 6-inch guns but only Good Hope was armed with two 9.2-inch guns mounted in single turrets. Spee had a superior force of five modern vessels (the armoured cruisers SMS Scharnhorst and Gneisenau and the light cruisers SMS Dresden, Leipzig and Nürnberg), led by officers hand-picked by Grand Admiral Alfred von Tirpitz. Scharnhorst and Gneisenau carried eight 8.2-inch guns each, which gave them an overwhelming advantage in range and firepower; the crews of both ships had earned accolades for their gunnery before the war. The Admiralty ordered Cradock to "be prepared to meet them in company", with no effort being made to clarify what action he was expected to take should he find Spee. On receiving his orders, Cradock asked the Admiralty for permission to split his fleet into two forces, each able to face Spee independently. The two groups would operate on the east and west coasts of South America to counter the possibility of Spee slipping past Cradock into the Atlantic Ocean. The Admiralty agreed and established the east coast squadron under Rear-Admiral Archibald Stoddart, consisting of three cruisers and two armed merchantmen.
The remaining vessels formed the west coast squadron, which was reinforced by Canopus on 18 October. At the outbreak of war and said to be in need of overhaul, Canopus had a top speed of 18 knots (33 km/h; 21 mph). (After the fleet sailed, it was found that the ship could only make 16 kn (30 km/h; 18 mph) and that the senior engineer was mentally ill.) The Admiralty agreed that with Canopus the fleet would be too slow to force an engagement with the German cruisers and that without Canopus the west coast squadron stood no chance. Cradock sailed from the Falklands on 20 October, still under the impression that Defence would soon arrive and with Admiralty orders to attack German merchant ships and to seek out the East Asiatic Squadron. As the British squadron rounded Cape Horn, wireless transmissions from Leipzig increased in power and it seemed that the British would catch the ship while isolated, but Spee had made rendezvous with Leipzig on 14 October and had enforced wireless silence on the other ships.
Lines of communication
On 30 October, before the battle but due to communications delays too late to have any effect, Admiral Jackie Fisher was re-appointed First Sea Lord, replacing Prince Louis of Battenberg, who, along with Churchill, had been
preoccupied with fighting to keep his position as First Sea Lord in the face of widespread concern over the senior British Admiral being of German descent. Battenberg was a proven and reliable admiral but was replaced to appease public opinion. The crisis drew the attention of the most senior members of the Admiralty away from the events in South America: Churchill later claimed that if he had not been distracted, he would have questioned the intentions of his admiral at sea more deeply.
A signal from Cradock was received by Churchill on 27 October, advising the Admiralty of his intention to leave Canopus behind because of her slow speed and, as previously instructed, to take his remaining ships in search of Spee. He re-stated that he was still expecting reinforcements in the form of Defence, which he had previously been told was coming and that he had given orders for her to follow him as soon as possible. Although Defence had once been sent to reinforce Cradock, it had then been recalled part way, returned to the Mediterranean and then been sent again to form part of a new squadron patrolling the eastern coast of South America. A misunderstanding had arisen between Cradock and the Admiralty over how ships were to be assigned and used. Cradock believed he was expected to advance against Spee with those forces he had, whereas the Admiralty expected him to exercise caution, using Canopus for defence and merely to scout for the enemy or take advantage of any situation where he might come across part of the enemy force. Churchill replied to the signal, telling Cradock that Defence was to remain on the east coast and that Cradock was considered to have sufficient forces for his task, making no comment about his plan to abandon Canopus. Churchill had passed on the message to the Admiralty staff, saying he did not properly understand what Cradock intended.
Cradock probably received Churchill's reply on 1 November with the messages collected by Glasgow at Coronel, giving him time to read it before the battle. Thus, Cradock would have taken the message as final confirmation that he was doing what was expected. Departing from Stanley he had left behind a letter to be forwarded to Admiral of the Fleet Sir Hedworth Meux in the event of his death. In this, he commented that he did not intend to suffer the fate of Rear Admiral Ernest Troubridge, a friend of Cradock, who at the time was awaiting court-martial for failing to engage the enemy. The governor of the Falklands reported that Cradock had not expected to survive, as did the governor's aide. Luce reported that "Cradock was constitutionally incapable of refusing or even postponing action if there was the smallest chance of success".
On 3 November, Fisher in London received news from Valparaíso that Spee had been sighted. He urgently gave orders for Defence to join Cradock and stressed the need to keep Canopus together with the other ships. On 4 November, German reports of the battle started to reach London.
Prelude
British preparations
On 22 October, Cradock cabled the Admiralty that he was going to round Cape Horn and was leaving Canopus behind to escort his colliers. Admiral John Fisher replaced Battenberg as First Sea Lord on 27 October, and the following day Fisher ordered Cradock not to engage Spee without Canopus. He then ordered HMS Defence to reinforce Cradock. The previous week Cradock had sent Glasgow to Coronel to pick up any messages the Admiralty might have sent. Spee, having learned of the presence of Glasgow off Coronel, sailed south from Valparaíso with all five warships with the intention of destroying her. Glasgow intercepted radio traffic from one of the German cruisers and informed Cradock, who turned his fleet north to intercept the cruiser.
Given the German superiority in speed, firepower, efficiency and numbers, why Cradock chose to engage puzzles historians. At the time Rear Admiral Ernest Troubridge, a friend of Cradock, was awaiting court-martial for failing to engage the enemy, and he had been told by the Admiralty that his force was "sufficient". The accepted view among Cradock's colleagues was that he was "constitutionally incapable of refusing action". On 31 October, he ordered his squadron to adopt an attacking formation. Both sides are thought to have expected to encounter a single ship until they sighted each other at 16:40 on 1 November.
Battle
On 31 October, Glasgow entered Coronel harbour to collect messages and news from the British consul. Also in harbour was a supply ship—Göttingen—working for Spee, which immediately radioed with the news of the British ship entering harbour. Glasgow was listening to radio traffic, which suggested that German warships were close. Matters were confused because the German ships had been instructed to all use the same call sign, that of Leipzig. Spee decided to move his ships to Coronel to trap Glasgow while Admiral Cradock hurried north to catch Leipzig. Neither side realised the other's main force was nearby.
At 09:15 on 1 November, Glasgow left port to meet Cradock at noon, 40 mi (34.8 nmi; 64.4 km) west of Coronel. Seas were rough so that it was impossible to send a boat between the ships to deliver the messages, which had to be transferred on a line floated in the sea. At 13:05, the ships formed into a line abreast formation 15 mi (13.0 nmi; 24.1 km) apart, with Glasgow at the eastern end, and started to steam north at 10 knots (19 km/h; 12 mph) searching for Leipzig. At 16:17 Leipzig, accompanied by the other German ships, spotted smoke from the line of British ships. Spee ordered full speed so that Scharnhorst, Gneisenau and Leipzig were approaching the British at 20 knots (37 km/h; 23 mph), with the slower light cruisers Dresden and Nürnberg some way behind.
At 16:20, Glasgow and Otranto saw smoke to the north and then three ships at a range of 12 mi (10.4 nmi; 19.3 km). The British reversed direction, so that both fleets were moving south, and a chase began which lasted 90 minutes. Cradock was faced with a choice; he could either take his three cruisers capable of 20 kn (23 mph; 37 km/h), abandon Otranto and run from the Germans, or stay and fight with Otranto, which could only manage 16 kn (18 mph; 30 km/h). The German ships slowed at a range of 15,000 yd (13,720 m) to reorganise themselves for best positions, and to await best visibility, when the British to their west would be outlined against the setting sun.
At 17:10, Cradock decided he must fight, and drew his ships closer together. He changed course to south-east and attempted to close upon the German ships while the sun remained high. Spee declined to engage and turned his faster ships away, maintaining the distance between the forces which sailed roughly parallel at a distance of 14,000 yd (12,800 m). At 18:18, Cradock again attempted to close, steering directly towards the enemy, which once again turned away to a greater range of 18,000 yd (16,460 m). At 18:50, the sun set; Spee closed to 12,000 yd (10,970 m) and commenced firing.
The German ships had sixteen 21 cm (8 in) guns of comparable range to the two 9.2 in (234 mm) guns on Good Hope. One of these was hit within five minutes of the engagement's starting. Of the remaining 6 in (152 mm) guns on the British ships, most were in casemates along the sides of the ships, which continually flooded if the gun doors were opened to fire in heavy seas. The merchant cruiser Otranto—having only eight 4.7 in (120 mm) guns and being a much larger target than the other ships—retired west at full speed.