War of Jenkins ' Ear - wikipedia War of Jenkins ' Ear War of Jenkins ' Ear Part of the War of the Austrian Succession Date 22 October 1739 -- 18 October 1748 Location New Granada and the Caribbean ; Florida -- Georgia ; Pacific and Atlantic Result Status quo ante bellum British offensive defeated in the Caribbean theatre British invasion of Florida repulsed. Spanish invasion of Georgia repulsed. The Treaty of Aix - la - Chapelle ( 1748 ) ended hostilities Britain gives up rights to the Asiento in the Treaty of Madrid ( 1750 ) Belligerents British Empire Spanish Empire Commanders and leaders Sir Robert Walpole Lord Wilmington Henry Pelham Edward Vernon Chaloner Ogle George Anson Charles Knowles Thomas Wentworth James Oglethorpe Philip V Sebastián de Eslava Blas de Lezo Manuel de Montiano Andrés Reggio Gabriel de Zuloaga Casualties and losses 20,000 dead, wounded, missing, or captured, 407 ships lost 4,500 dead, 5,000 wounded, 186 ships lost War of Jenkins ' Ear Americas Portobello Fort Mosé St. Augustine Anson expedition Cartagena de Indias 1st Santiago de Cuba Georgia Bloody Marsh Gully Hole Creek La Guaira Puerto Cabello 2nd Santiago de Cuba Havana European Waters Fuerteventura 8 April 1740 Saint Tropez Cape Sicie Voyage of the Glorioso 18 March 1748 Part of the War of the Austrian Succession Anglo - Spanish wars 1585 -- 1604 1625 -- 30 1654 -- 60 1701 -- 13 1718 -- 20 1727 -- 29 1739 -- 48 1762 -- 63 1779 -- 83 1796 -- 1802 1803 -- 08 1833 -- 40 Part of a series on the Wars of Great Britain Seven Years ' War Jacobite risings War of Jenkins ' Ear War of the Austrian Succession Seven Years ' War American Revolutionary War Fourth Anglo - Dutch War French Revolutionary Wars Part of a series on the History of Spain Early history Prehistoric Iberia Pre-Roman peoples of the Iberian Peninsula Carthaginian Iberia Hispania Roman conquest of Hispania Romanization of Hispania Medieval Suebic kingdom Visigothic kingdom Byzantine Spania Umayyad conquest of Hispania Al - Andalus / Reconquista Early modern Catholic Monarchs Age of Expansion Spanish Empire Golden Age Enlightenment Modern Napoleonic Spain / War of Independence Cádiz Cortes / 1812 Constitution Independence of Spanish America Reaction and Revolution Spanish confiscation First Republic Restoration Disaster of 1898 Second Republic Civil War Francoist Spain Contemporary Transition to democracy Spain since 1975 By topic Colonial history Economic history Military history Timeline Spain portal The War of Jenkins ' Ear ( known as Guerra del Asiento in Spain ) was a conflict between Britain and Spain lasting from 1739 to 1748, with major operations largely ended by 1742. Its unusual name, coined by Thomas Carlyle in 1858, refers to an ear severed from Robert Jenkins, a captain of a British merchant ship. Despite stories to that effect, there is no evidence the severed ear was exhibited before the British Parliament. The seeds of conflict began with the separation of an ear from Jenkins following the boarding of his vessel by Spanish coast guards in 1731, eight years before the war began. Popular response to the incident was tepid until several years later when opposition politicians and the British South Sea Company hoped to spur outrage against Spain, believing that a victorious war would improve Britain 's trading opportunities in the Caribbean. Also ostensibly providing the impetus to war against the Spanish Empire was a desire to pressure the Spanish not to renege on the lucrative asiento contract, which gave British slavers permission to sell slaves in Spanish America. The war resulted in heavy British casualties in North America. After 1742, the war was subsumed by the wider War of the Austrian Succession, which involved most of the powers of Europe. Peace arrived with the Treaty of Aix - la - Chapelle in 1748. From the British perspective, the war was notable because it was the first time that a regiment of colonial American troops ( Oglethorpe 's Regiment ) was raised and placed `` on the Establishment '' -- made a part of the regular British Army -- and sent to fight outside North America. Contents 1 Background 2 Nomenclature 3 Conduct of the war 3.1 First attack on La Guaira ( 22 October 1739 ) 3.2 Capture of Portobelo ( 20 -- 22 November 1739 ) 3.3 First attack on Cartagena de Indias ( 13 -- 20 March 1740 ) 3.4 Destruction of the fortress of San Lorenzo el Real Chagres ( 22 -- 24 March 1740 ) 3.5 Second attack on Cartagena de Indias ( 3 May 1740 ) 3.6 Third attack on Cartagena de Indias ( 13 March -- 20 May 1741 ) 3.7 Anson expedition 3.8 Florida 3.9 French neutrality 3.10 Invasion of Georgia 3.11 Second attack on La Guaira ( 2 March 1743 ) 3.12 Merger with wider war 3.13 Privateering 3.14 Lisbon negotiations 4 Aftermath 5 See also 6 Notes 7 References 8 Further reading 8.1 Other resources 9 External links Background At the conclusion of the War of the Spanish Succession in 1713, the Treaty of Utrecht gave Britain a thirty - year asiento, or contract - right, to supply an unlimited number of slaves to the Spanish colonies, and 500 tons of goods per year. This provided British traders and smugglers potential inroads into the traditionally closed markets in Spanish America. But Britain and Spain were often at war during this period, fighting one another in the War of the Quadruple Alliance ( 1718 -- 20 ), the Blockade of Porto Bello ( 1726 ) and the Anglo - Spanish War ( 1727 -- 1729 ). In the Treaty of Seville ( 1729 ), following the Anglo - Spanish War, Britain had accorded Spanish warships the right to stop British traders and verify that the asiento right was being respected. Over time, the Spanish became suspicious British traders were abusing the contract and began to board ships and confiscate their cargoes. After very strained relations between 1727 and 1732, the situation improved between 1732 and 1737, when Sir Robert Walpole supported Spain during the War of the Polish Succession. But the causes of the problems remained and, when the opposition against Walpole grew, so did anti-Spanish sentiment among the British public. Walpole gave in to the pressure and approved the sending of troops to the West Indies and a squadron to Gibraltar under Admiral Nicholas Haddock, provoking an immediate Spanish reaction. Spain asked for financial compensation, and in turn the British demanded annulment of the `` Visitation Right '' -- which allowed the Spanish to board British vessels to check for smuggled cargo -- agreed to in the Treaty of Seville ( 1729 ). In response, King Philip V of Spain annulled the asiento right and had all British ships in Spanish harbours confiscated. The Convention of Pardo, an attempt to mediate the dispute, broke down. On 14 August, Britain recalled its ambassador to Spain and officially declared war on 23 October 1739. Despite the Pacte de Famille, France remained neutral. Walpole was deeply reluctant to declare war and reportedly remarked of the jubilation in Britain `` they are ringing their bells, soon they will be wringing their hands ''. Nomenclature Further information : Robert Jenkins ( master mariner ) The incident that gave its name to the war had occurred in 1731, off the coast of Florida, when the British brig Rebecca was boarded by the Spanish patrol boat La Isabela, commanded by the guarda costa ( effectively privateer ) Juan de León Fandiño. After boarding, Fandiño cut off the left ear of the Rebecca 's captain, Robert Jenkins, whom he accused of smuggling ( although Franklin 's Pennsylvania Gazette for 7 October 1731, says it was Lieutenant Dorce ). Fandiño told Jenkins, `` Go, and tell your King that I will do the same, if he dares to do the same. '' In March 1738, Jenkins was ordered to testify before Parliament, presumably to repeat his story before a committee of the House of Commons. According to some accounts, he produced the severed ear as part of his presentation, although no detailed record of the hearing exists. The incident was considered alongside various other cases of `` Spanish Depredations upon the British Subjects '', and was perceived as an insult to Britain 's honour and a clear casus belli. The conflict was named by essayist and historian Thomas Carlyle, in 1858, one hundred and ten years after hostilities ended. Carlyle mentioned the ear in several passages of his History of Friedrich II ( 1858 ), most notably in Book XI, chapter VI, where he refers specifically to `` the War of Jenkins 's Ear ''. Conduct of the War First attack on La Guaira ( 22 October 1739 ) See also : Guipuzcoan Company of Caracas Following Jenkins ' testimony and petitions from other West Indies merchants, the opposition in Parliament voted on 28 March 1738 to send `` an Address '' to the King, asking his Majesty to seek redress from Spain. More than one year later, all diplomatic means having been exhausted, on 10 July 1739 King George II authorised the Admiralty Board to seek maritime reprisals against Spain. On 20 July, Vice Admiral Edward Vernon and a fleet of warships departed Britain, bound for the West Indies, to attack Spanish ships and `` possessions ''. War was not declared against Spain until Saturday, 23 October 1739 ( Old Style ), one day after the attack on La Guaira, the principal port of the Province of Venezuela, which was controlled by the Royal Guipuzcoan Company of Caracas. After arriving at the island of Antigua in early October 1739, Vice Admiral Edward Vernon sent three ships under the command of Captain Thomas Waterhouse to intercept Spanish merchant ships that made the route between La Guaira and Porto Bello. Waterhouse spotted several small vessels in the port of La Guaira and decided to attack, implementing a rudimentary plan. The governor of the Province of Venezuela, Brigadier Don Gabriel de Zuloaga had prepared the port defences, and Spanish troops were well - commanded by Captain Don Francisco Saucedo. On 22 October, Waterhouse entered the port of La Guaira flying the Spanish flag. Expecting attack, the port gunners were not deceived by his ruse ; they waited until the British squadron was within range and then simultaneously opened fire. After three hours of heavy shelling, Waterhouse ordered a withdrawal. The battered British squadron sailed to Jamaica to undertake emergency repairs. Trying later to explain his actions, Waterhouse argued that the capture of a few small Spanish vessels would not have justified the loss of his men. Capture of Portobelo ( 20 -- 22 November 1739 ) Main article : Battle of Porto Bello One of the first major actions of the war was the British capture, on 22 November 1739, of Portobelo, a silver - exporting town on the coast of Panama ; the move was intended to damage Spain 's finances and weaken its naval capabilities. The poorly defended port was attacked by six ships of the line under Vice Admiral Edward Vernon who captured it within twenty - four hours. The British occupied the town for three weeks before withdrawing, having destroyed its fortifications, port and warehouses. As a result, the Spanish changed their trading practices. Rather than trading at centralised ports with a few large treasure fleets, they began using a larger number of smaller convoys trading at a wide variety of ports. They also began to travel around Cape Horn to trade on the west coast. Portobelo 's economy was so damaged that it did not recover until the building of the Panama Canal nearly two centuries later. In Britain, the victory was greeted with much celebration. In 1740, at a dinner in honour of Vernon in London, the song `` Rule Britannia '' was performed in public for the first time. The suburb of Portobello on the Firth of Forth and Portobello Road in London are numbered among various places in Britain named after this victory. More medals were awarded to participants than for any other event in the eighteenth century. The conquest of a port in Spain 's American empire was widely considered a foregone conclusion by many Patriot Whigs and opposition Tories, who pressed a reluctant Walpole to launch larger naval expeditions to the Gulf of Mexico. First attack on Cartagena de Indias ( 13 -- 20 March 1740 ) Spanish Admiral Don Blas de Lezo 1741 Following the success of Portobelo, Vernon decided to focus his efforts on the capture of Cartagena de Indias in present - day Colombia. Both Vernon and Edward Trelawny, governor of Jamaica, considered the Spanish gold shipping port to be a prime objective. Since the outbreak of the war, and Vernon 's arrival in the Caribbean, the British had made a concerted effort to gain intelligence on the defences of Cartagena. In October 1739, Vernon sent First Lieutenant Percival to deliver a letter to Blas de Lezo and Don Pedro Hidalgo, governor of Cartagena. Percival was to use the opportunity to make a detailed study of the Spanish defences. This effort was thwarted when Percival was denied entry to the port. On 7 March 1740, in a more direct approach, Vernon undertook a reconnaissance - in - force of the Spanish city. Vernon left Port Royal in command of a squadron including ships of the line, two fire ships, three bomb vessels, and transport ships. Reaching Cartagena on 13 March, Vernon immediately landed several men to map the topography and to reconnoitre the Spanish squadron anchored in Playa Grande, west of Cartagena. Having not seen any reaction from the Spanish, on 18 March Vernon ordered the three bomb vessels to open fire on the city. Vernon intended to provoke a response that might give him a better idea of the defensive capabilities of the Spanish. Understanding Vernon 's motives, Lezo did not immediately respond. Instead, Lezo ordered the removal of guns from some of his ships, in order to form a temporary shore battery for the purpose of suppressive fire. Vernon next initiated an amphibious assault, but in the face of strong resistance, the attempt to land 400 soldiers was unsuccessful. The British then undertook a three - day naval bombardment of the city. In total, the campaign lasted 21 days. Vernon then withdrew his forces, leaving HMS Windsor Castle and HMS Greenwich in the vicinity, with a mission to intercept any Spanish ship that might approach. Destruction of the fortress of San Lorenzo el Real Chagres ( 22 -- 24 March 1740 ) After the destruction of Portobelo the previous November, Vernon proceeded to remove the last Spanish stronghold in the area. He attacked the fortress of San Lorenzo el Real Chagres, in present - day Panama on the banks of the Chagres River, near Portobelo. The fort was defended by Spanish patrol boats, and was armed with four guns and about thirty soldiers under Captain of Infantry Don Juan Carlos Gutiérrez Cevallos. At 3 pm on 22 March 1740, the British squadron, composed of the ships Stafford, Norwich, Falmouth and Princess Louisa, the frigate Diamond, the bomb vessels Alderney, Terrible, and Cumberland, the fireships Success and Eleanor, and transports Goodly and Pompey, under command of Vernon, began to bombard the Spanish fortress. Given the overwhelming superiority of the British forces, Captain Cevallos surrendered the fort on 24 March, after resisting for two days. Following the strategy previously applied at Porto Bello, the British destroyed the fort and seized the guns along with two Spanish patrol boats. During this time of British victories along the Caribbean coast, events taking place in Spain would prove to have a significant effect on the outcome of the largest engagement of the war. Spain had decided to replace Don Pedro Hidalgo as governor of Cartagena de Indias. But, the new governor - designate, Lieutenant General of the Royal Armies Sebastián de Eslava y Lazaga had first to dodge the Royal Navy in order to get to his new post. Starting from the Galician port of Ferrol, the vessels Galicia and San Carlos set out on the journey. Hearing the news, Vernon immediately sent four ships to intercept the Spanish. They were unsuccessful in their mission. The Spanish managed to circumvent the British interceptors and entered the port of Cartagena on 21 April 1740, landing there with the new governor and several hundred veteran soldiers. Second attack on Cartagena de Indias ( 3 May 1740 ) In May, Vernon returned to Cartagena de Indias aboard the flagship HMS Princess Caroline in charge of 13 warships, with the intention of bombarding the city. Lezo reacted by deploying his six ships of the line so that the British fleet was forced into ranges where they could only make short or long shots that were of little value. Vernon withdrew, asserting that the attack was merely a manoeuver. The main consequence of this action was to help the Spanish test their defences. Third attack on Cartagena de Indias ( 13 March -- 20 May 1741 ) Main article : Battle of Cartagena de Indias This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. ( November 2015 ) Castillo San Felipe de Barajas ( Cartagena ). This ( then incomplete ) fortress was integral to Spain 's effort to maintain the link with its colonies via the Atlantic sea lanes. British operations in the Caribbean Sea during the War of Jenkins ' Ear The largest action of the war was a major amphibious attack launched by the British under Admiral Edward Vernon in March 1741 against Cartagena de Indias, one of Spain 's principal gold - trading ports in their colony of New Granada ( today Colombia ). Vernon 's expedition was hampered by inefficient organisation, his rivalry with the commander of his land forces, and the logistical problems of mounting and maintaining a major trans - Atlantic expedition. The strong fortifications in Cartagena and the able strategy of Spanish Commander Blas de Lezo were decisive in repelling the attack. Heavy losses on the British side were due in large part to virulent tropical diseases, primarily an outbreak of yellow fever, which took more lives than those lost in battle. The extreme ease with which the British destroyed Porto Bello led to a change in British plans. Instead of Vernon concentrating his next attack on Havana as expected, in order to conquer Cuba, he planned to attack Cartagena de Indias. Located in Colombia, it was the main port of the Viceroyalty and main point of the West Indian fleet for sailing to the Iberian Peninsula. In preparation the British gathered in Jamaica one of the largest fleets ever assembled. It consisted of 186 ships ( 60 more than the famous Spanish Armada of Philip II ), bearing 2,620 artillery pieces and more than 27,000 men. Of that number, 10,000 were soldiers responsible for initiating the assault. There were also 12,600 sailors, 1,000 Jamaican slaves and macheteros, and 4,000 recruits from Virginia. The latter were led by Lawrence Washington, the older half - brother of George Washington, future President of the United States. Colonial officials assigned Admiral Blas de Lezo to defend the fortified city. He was a marine veteran hardened by numerous naval battles in Europe, beginning with the War of the Spanish Succession, and by confrontations with European pirates in the Caribbean Sea and Pacific Ocean, and Barbary pirates in the Mediterranean Sea. Assisting in that effort were Melchor de Navarrete and Carlos Desnaux, with a squadron of six ships of the line ( the flagship vessel Galicia together with the San Felipe, San Carlos, África, Dragón, and Conquistador ) and a force of 3,000 soldiers, 600 militia and a group of native Indian archers. Vernon ordered his forces to clear the port of all scuttled ships. On 13 March 1741, he landed a contingent of troops under command of Major General Thomas Wentworth and artillery to take Fort de San Luis de Bocachica. In support of that action, the British ships simultaneously opened with cannon fire, at a rate of 62 shots per hour. In turn, Lezo ordered four of the Spanish ships to aid 500 of his troops defending Desnaux 's position, but the Spanish eventually had to retire to the city. Civilians were already evacuating it. After leaving Fort Bocagrande, the Spanish regrouped at Fort San Felipe de Barajas, while Washington 's Virginians took up positions in the nearby hill of La Popa. Vernon, believing the victory at hand, sent a message to Jamaica stating that he had taken the city. The report was subsequently forwarded to London, where there was much celebration. Commemorative medals were minted, depicting the defeated Spanish defenders kneeling before Vernon ( ( 1 ) ). The robust image of the enemy depicted in the British medals bore little resemblance to Admiral Lezo. Maimed by years of battle, he was one - eyed and lame, with limited use of one hand. On the evening of 19 April, the British mounted an assault in force upon Castillo San Felipe de Barajas. Three columns of grenadiers, supported by Jamaicans and several British companies, moved under cover of darkness, with the aid of an intense naval bombardment. The British fought their way to the base of the fort 's ramparts where they discovered that the Spanish had dug deep trenches. This effectively rendered the British scaling equipment too short for the task. The British advance was stymied since the fort 's walls had not been breached, and the ramparts could not be topped. Neither could the British easily withdraw in the face of intense Spanish fire and under the weight of their own equipment. The Spanish seized on this opportunity, with devastating effect. Reversing the tide of battle, the Spanish initiated a fixed bayonet charge at first light, inflicting heavy casualties on the British. The surviving British forces retreated to the safety of their ships. The British maintained a naval bombardment, sinking what remained of the small Spanish squadron ( after Lezo 's decision to scuttle some of his ships in an effort to block the harbour entrance ). The Spanish thwarted any British attempt to land another ground assault force. The British troops were forced to remain aboard ship for a month, without sufficient reserves. With supplies running low, and with the outbreak of disease ( primarily yellow fever ), which took the lives of many on the crowded ships, Vernon was forced to raise the siege on 9 May and return to Jamaica. Six thousand British died while only one thousand Spanish perished. Vernon carried on, successfully attacking the Spanish at Guantánamo Bay, Cuba. On 5 March 1742, with the help of reinforcements from Europe, he launched an assault on Panama City, Panama. In 1742, Vernon was replaced by Admiral of the Fleet Chaloner Ogle and returned to England, where he gave an accounting to the Admiralty. He learned that he had been elected MP for Ipswich. Vernon maintained his naval career for another four years before retiring in 1746. In an active Parliamentary career, Vernon advocated for improvements in naval procedures. He continued to hold an interest in naval affairs until his death in 1757. News of the defeat at Cartagena was a significant factor in the downfall of the British Prime Minister Robert Walpole. Walpole 's anti-war views were considered by the Opposition to have contributed to his poor prosecution of the war effort. The new government under Lord Wilmington wanted to shift the focus of Britain 's war effort away from the Americas and into the Mediterranean. Spanish policy, dictated by the queen Elisabeth Farnese of Parma, also shifted to a European focus, to recover lost Spanish possessions in Italy from the Austrians. In 1742, a large British fleet under Nicholas Haddock was sent to try and intercept a Spanish army being transported from Barcelona to Italy, which he failed to do having only 10 ships. With the arrival of additional ships from Britain in February 1742, Haddock successfully blockaded the Spanish coast failing to force the Spanish fleet into an action. Lawrence Washington survived the yellow fever outbreak, and eventually retired to Virginia. He named his estate Mount Vernon, in honour of his former commander. Anson expedition Further information : George Anson 's voyage around the world and Wager Mutiny George Anson 's capture of a Manila galleon, painted by Samuel Scott before 1772 The success of the Porto Bello operation led the British, in September 1740, to send a squadron under Commodore George Anson to attack Spain 's possessions in the Pacific. Before they reached the Pacific, numerous men had died from disease, and they were in no shape to launch any sort of attack. Anson reassembled his force in the Juan Fernández Islands, allowing them to recuperate before he moved up the Chilean coast, raiding the small town of Paita. He reached Acapulco too late to intercept the yearly Manila galleon, which had been one of the principal objectives of the expedition. He retreated across the Pacific, running into a storm that forced him to dock for repairs in Canton. After this he tried again the following year to intercept the Manila galleon. He accomplished this on 20 June 1743 off Cape Espiritu Santo, capturing more than a million gold coins. Anson sailed home, arriving in London more than three and a half years after he had set out, having circumnavigated the globe in the process. Less than a tenth of his forces had survived the expedition. Anson 's achievements helped establish his name and wealth in Britain, leading to his appointment as First Lord of the Admiralty. Florida Main article : Siege of St. Augustine ( 1740 ) In 1740, the inhabitants of Georgia launched an overland attack on the fortified city of St. Augustine in Florida, supported by a British naval blockade, but were repelled. The British forces led by James Oglethorpe, the Governor of Georgia, besieged St. Augustine for over a month before retreating, and abandoned their artillery in the process. The failure of the Royal Navy blockade to prevent supplies reaching the settlement was a crucial factor in the collapse of the siege. Oglethorpe began preparing Georgia for an expected Spanish assault. French neutrality When war broke out in 1739, both Britain and Spain expected that France would join the war on the Spanish side. This played a large role in the tactical calculations of the British. If the Spanish and French were to operate together, they would have a superiority of ninety ships of the line. In 1740, there was an invasion scare when it was believed that a French fleet at Brest and a Spanish fleet at Ferrol were about to combine and launch an invasion of England. Although this proved not to be the case, the British kept the bulk of their naval and land forces in southern England to act as a deterrent. Many in the British government were afraid to launch a major offensive against the Spanish, for fear that a major British victory would draw France into the war to protect the balance of power. Invasion of Georgia Main article : Invasion of Georgia ( 1742 ) In 1742, the Spanish launched an attempt to seize the British colony of Georgia. Manuel de Montiano commanded 2,000 troops, who were landed on St Simons Island off the coast. General Oglethorpe rallied the local forces and defeated the Spanish regulars at Bloody Marsh and Gully Hole Creek, forcing them to withdraw. Border clashes between the colonies of Florida and Georgia continued for the next few years, but neither Spain nor Britain undertook offensive operations on the North American mainland. Second attack on La Guaira ( 2 March 1743 ) Main articles : Battle of La Guaira and Battle of Puerto Cabello Commodore Charles Knowles in armour, one hand gestures to fortifications and a burning ship The British attacked several locations in the Caribbean with little consequence to the geopolitical situation in the Atlantic. The weakened British forces under Vernon launched an attack against Cuba, landing in Guantánamo Bay with a plan to march the 45 miles to Santiago de Cuba and capture the city. Vernon clashed with the army commander, and the expedition withdrew when faced with heavier Spanish opposition than expected. Vernon remained in the Caribbean until October 1742, before heading back to Britain ; he was replaced by admiral Chaloner Ogle, who took command of a sickly fleet. Less than half the sailors were fit for duty. The following year, a smaller fleet of Royal Navy led by commodore Charles Knowles raided the Venezuelan coast, on 2 March 1743 attacking newly La Guaira controlled by Royal Guipuzcoan Company of Caracas whose ships had rendered great assistance to the Spanish navy during War in carrying troops, arms, stores and ammunition from Spain to her colonies, and its destruction would be a severe blow both to the Company and the Spanish Crown. After a fierce defence by Governor Gabriel José de Zuloaga 's troops, Commodore Knowles, having suffered 97 killed and 308 wounded over three days, decided to retire west before sunrise on 6 March. He decided to attack nearby Puerto Cabello. Despite his orders to rendezvous at Borburata Keys -- 4 miles ( 6.4 km ) east of Puerto Cabello -- captains of the detached Burford, Norwich, Assistance, and Otter proceeded to Curaçao. The commodore angrily followed them in. On 28 March, he sent his smaller ships to cruise off Puerto Cabello, and once his main body had been refitted by forces of Governor Zuluaga, went to sea again on 31 March. He struggled against contrary winds and currents for two weeks before finally diverting to the eastern tip of Santo Domingo by 19 April. Merger with wider War By mid-1742, the War of the Austrian Succession had broken out in Europe. Principally fought by Prussia and Austria over possession of Silesia, the war soon engulfed most of the major powers of Europe, who joined two competing alliances. The scale of this new war dwarfed any of the fighting in the Americas, and drew Britain and Spain 's attention back to operations on the European continent. The return of Vernon 's fleet in 1742 marked the end of major offensive operations in the War of Jenkins ' Ear. France entered the war in 1744, emphasizing the European theatre and planning an ambitious invasion of Britain. While it ultimately failed, the threat persuaded British policymakers of the dangers of sending significant forces to the Americas which might be needed at home. Britain did not attempt any additional attacks on Spanish possessions. In 1745, William Pepperrell of New England led a colonial expedition, supported by a British fleet under Commodore Peter Warren, against the French fortress of Louisbourg on Cape Breton Island off Canada. Pepperrell was knighted for his achievement, but Britain returned Louisbourg to the French by the Treaty of Aix - La - Chapelle in 1748. A decade later, during the Seven Years ' War ( known as the French and Indian War in the North American theatre ), British forces under Lord Jeffrey Amherst and General Wolfe recaptured it. Privateering The war involved privateering by both sides. Anson captured a valuable Manila galleon, but this was more than offset by the numerous Spanish privateering attacks on British shipping along the transatlantic triangular trade route. They seized hundreds of British ships, looting their goods and slaves, and operated with virtual impunity in the West Indies ; they were also active in European waters. The Spanish convoys proved almost unstoppable. During the Austrian phase of the war, the British fleet attacked poorly protected French merchantmen instead. Lisbon negotiations From August 1746, negotiations began in the city of Lisbon, in neutral Portugal, to try to arrange a peace settlement. The death of Philip V of Spain had brought his son Ferdinand VI to the throne, and he was more willing to be conciliatory over the issues of trade. However, because of their commitments to their Austrian allies, the British were unable to agree to Spanish demands for territory in Italy and talks broke down. Aftermath Further information : Congress of Breda A monument in Georgia commemorating the Battle of Bloody Marsh The eventual diplomatic resolution formed part of the wider settlement of the War of the Austrian Succession by the Treaty of Aix - la - Chapelle. The issue of the asiento was not mentioned in the treaty, as it had lessened in importance to both nations. The issue was finally settled by the 1750 Treaty of Madrid in which Britain agreed to renounce its claim to the asiento in exchange for a payment of £ 100,000. It allowed British trade with Spanish America under favourable conditions. George Anson 's expedition to the Southeast Pacific led the Spanish authorities in Lima and Santiago to advance the position of the Spanish Empire in the area. This meant that forts were built in the Juan Fernández Islands and the Chonos Archipelago in 1749 and 1750. Relations between Britain and Spain dramatically improved during subsequent years thanks to a concerted effort by the Duke of Newcastle to cultivate Spain as an ally. A succession of Anglophile ministers were appointed in Spain, including José de Carvajal and Ricardo Wall, all of whom were on good terms with the British Ambassador Benjamin Keene, in an effort to avoid a repeat of hostilities. As a result, Spain remained neutral during the early part of the Seven Years ' War between Britain and France. The Spanish Empire in the Caribbean remained intact until the British capture of Havana in 1762. Spain later used its trading routes and resources to help the rebels ' cause in the American Revolution of the late 18th century, despite warnings by the Conde de Aranda that such a course of action might encourage Spanish - Americans to do the same, as it subsequently turned out. As to the fate of one of the protagonists of the incidents prior to the war, Juan de León Fandiño and his San Juan Bautista ( 10 guns and 80 men ) were taken by Captain ( later Sir ) Thomas Frankland, commanding HMS Rose ( 20 ), on 4 June 1742 : `` Captain Frankland has sent him to England, and he is now in Custody at Portsmouth '' ( The London Gazette, 3 / VIII / 1742 ). The War of Jenkins ' Ear is commemorated annually on the last Saturday in May at Wormsloe Plantation in Savannah, Georgia. See also List of conflicts in British America Hart House ( Taylor 's Bridge, Delaware ) British Empire portal New Spain portal Notes Jump up ^ Dewald, pp. ? -- ? Jump up ^ Woodfine, pp. ? -- ? Jump up ^ Hakim, p. 19 Jump up ^ Newman and Brown, p. 744 Jump up ^ Carlyle discusses Jenkins ' Ear in several passages of his History of Friedrich II ( 1858 ), most notably in Book XI, chap VI, where he refers specifically to `` the War of Jenkins 's Ear '' ^ Jump up to : Graboyes, EM ; Hullar, TE. `` The War of Jenkins ' Ear ''. Otol Neurotol. 34 ( 2 ) : 368 -- 72. PMC 3711623. PMID 23444484. Jump up ^ Olson, pp. 1121 -- 22 ^ Jump up to : James, p. 59 Jump up ^ James, p. 61 Jump up ^ Pearce pp. 402 -- 3 Jump up ^ `` I want... a record confirming that Robert Jenkins exhibited his severed ear to Parliament in 1738 ( War of Jenkins ' Ear ) ''. U.K Parliament Archives : FAQ,. Archived from the original on 4 May 2016. Retrieved 14 April 2013. Jump up ^ `` Second Parliament of George II : Fourth session ( 6 of 9, begins 15 March 1738 ) ''. British History Online. Retrieved 7 November 2009. Jump up ^ Davies, Documents 215, 215i Jump up ^ `` Historical Chronicle '', The Gentleman 's Magazine, Saturday 23 October 1739, Vol. 9, October 1739, p. 551 ; accessed 13 May 2010. Jump up ^ Rodger p. 236. Jump up ^ Rodger pp. 23 -- 36. Jump up ^ Simms p. 276. Jump up ^ Sáez Abad, p. 57 Jump up ^ Sáez Abad, p. 58 Jump up ^ Webb, pp. 396 -- 398 Jump up ^ MVLA archives, document W - 734 Jump up ^ Chartrand, Rene. Colonial American Troops, 1610 -- 1774, Vol. 1, pp. 18 -- 19 Osprey Men - at - Arms # 366, Osprey Publishing 2002 ISBN 9781841763248 Jump up ^ Browning pp. 109 -- 13. ^ Jump up to : Rodger p. 239. Jump up ^ Reed Browning, The War of the Austrian Succession, p. 97. ^ Jump up to : Rodger p. 238. Jump up ^ Browning p. 98. Jump up ^ Longmate p. 146. Jump up ^ Simms p. 278. Jump up ^ Gott p. 39. Jump up ^ Francis Parkman, A Half Century of Conflict II and Montcalm and Wolfe II Jump up ^ Lodge pp. 202 -- 07. Jump up ^ Simms p. 381. Jump up ^ Urbina Carrasco, María Ximena ( 2014 ). `` El frustrado fuerte de Tenquehuen en el archipiélago de los Chonos, 1750 : Dimensión chilota de un conflicto hispano - británico ''. Historia. 47 ( I ). Retrieved 28 January 2016. References Dewald ( ed. ), Jonathan ( 2003 ). History 1450 -- 1789. Encyclopedia of the Early Modern World. Charles Scribner 's Sons. ISBN 0 - 684 - 31200 - X. CS1 maint : Extra text : authors list ( link ) Davies ( ed. ), K.G. ( 1994 ). Calendar of State Papers, Colonial Series : America and West Indies. HMSO. CS1 maint : Extra text : authors list ( link ) Hakim, Joy ( 2002 ). A History of the US :. Book 3 : From Colonies to Country 1735 -- 1791. Oxford University Press. ISBN 0 - 19 - 515323 - 5. Harding, Richard ( 2010 ). The Emergence of Britain 's Global Naval Supremacy : The War of 1739 -- 1748. Boydell and Brewer. ISBN 9781843835806. James, Lawrence ( 2001 ). The Rise and Fall of the British Empire. Abacus. ISBN 0 - 312 - 16985 - X. Olson, James ( 1996 ). Historical Dictionary of the British Empire. Greenwood Publishing Group. ISBN 0 - 313 - 29366 - X. Newman, Gerald ( 1997 ). Britain in the Hanoverian Age, 1714 -- 1837. Taylor & Francis. ISBN 0 - 8153 - 0396 - 3. Woodfine, Philip ( 1998 ). Britannia 's Glories. The Walpole ministry and the 1739 War with Spain. Suffolk : Boydell and Brewer. ISBN 0 - 86193 - 230 - 7. Gott, Richard. Cuba : A new history. Yale University Press, 2005. Lodge, Sir Richard. Studies in Eighteenth Century Diplomacy 1740 -- 1748. John Murray, 1930. Pearce, Edward. The Great Man : Sir Robert Walpole Pimlico, 2008. Rodger, N.A.M. The Command of the Ocean : A Naval History of Britain, 1649 -- 1815. Penguin Books, 2006. Simms, Brendan. Three Victories and a Defeat : The Rise and Fall of the First British Empire. Penguin Books, 2008. Browning, Reed. The Duke of Newcastle. Yale University Press, 1975. Webb, Stephen ( 2013 ). Marlborough 's America. Yale University Press. ISBN 978 - 0 - 300 - 17859 - 3. Further reading Library resources about War of Jenkins ' Ear Online books Resources in your library Resources in other libraries Finucanem Adrian. The Temptations of Trade : Britain, Spain, and the Struggle for Empire ( 2016 ) Norris, David A. `` The War Of Jenkins ' Ear. '' History Magazine ( Aug / Sep2015 ) 16 # 3 pp 31 - 35. Ignacio Rivas, Mobilizing Resources for War : The British and Spanish Intelligence Systems in the War of Jenkins ' Ear ( 1739 - 1744 ) ( 2010 ). Other resources Tobias Smollett, Authentic papers related to the expedition against Carthagena, by Jorge Orlando Melo in Reportaje de la historia de Colombia, Bogotá : Planeta, 1989. The American People ( sixth edition ) by Gary B. Nash and Julie Roy Jeffrey. Quintero Saravia, Gonzalo M. ( 2002 ). Don Blas de Lezo : defensor de Cartagena de Indias. Editorial Planeta Colombiana, Bogotá, Colombia. ISBN 958 - 42 - 0326 - 6. In Spanish. External links Wikimedia Commons has media related to War of Jenkins ' Ear. Proposals relating to the war in Georgia and Florida, 1740 -- a document suggesting strategies by which General James Oglethorpe might defeat the Spanish during the War of Jenkins ' Ear, from the collection of the Georgia Archives. 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Question: who was involved in the war of jenkins ear
Answer: Britain and Spain