The Second Barbary War (1815) or the U.S.–Algerian War was fought between the United States and the North African Barbary Coast states of Tripoli, Tunis, and Algiers. The war ended when the United States Senate ratified Commodore Stephen Decatur's Algerian treaty on 5 December 1815. However, Dey Omar Agha of Algeria repudiated the US treaty, refused to accept the terms of peace that had been ratified by the Congress of Vienna, and threatened the lives of all Christian inhabitants of Algiers. William Shaler was the US commissioner in Algiers who had negotiated alongside Decatur, but he fled aboard British vessels during the 1816 bombardment of Algiers. He negotiated a new treaty in 1816 which was not ratified by the Senate until 11 February 1822, because of an oversight.
The Barbary pirates, Barbary corsairs, or Ottoman corsairs were mainly Muslim pirates and privateers who operated from the Barbary states. This area was known in Europe as the Barbary Coast, in reference to the Berbers. The main purpose of their attacks was to capture slaves for the Barbary slave trade. Slaves in Barbary could be of many ethnicities, and of many different religions, such as Christian, Jewish, or Muslim. Their predation extended throughout the Mediterranean, south along West Africa's Atlantic seaboard and into the North Atlantic as far north as Iceland, but they primarily operated in the western Mediterranean. In addition to seizing merchant ships, they engaged in razzias, raids on European coastal towns and villages, mainly in Italy, France, Spain, and Portugal, but also in the British Isles, the Netherlands, and Iceland.
Occhiali was an Italian farmer, then Ottoman privateer and admiral, who later became beylerbey of the Regency of Algiers, and finally Grand Admiral of the Ottoman fleet in the 16th century.
The Battle of Cape Passaro, also known as Battle of Avola or Battle of Syracuse, was a major naval battle fought on 11 August 1718 between a fleet of the British Royal Navy under Admiral Sir George Byng and a fleet of the Spanish Navy under Rear-Admiral Antonio de Gaztañeta. It was fought off Cape Passaro, in the southern tip of the island of Sicily of which Spain had occupied. Spain and Britain were at peace, but Britain was already committed to supporting the ambitions of the Emperor Charles VI in southern Italy.
Oruç Reis was an Ottoman corsair who became Sultan of Algiers. The elder brother of the famous Ottoman admiral Hayreddin Barbarossa, he was born on the Ottoman island of Midilli and died in battle against the Spanish at Tlemcen.
Salah Rais was the 7th King of Algiers, an Ottoman privateer and admiral. He is alternatively referred to as Sala Reis, Salih Rais, Salek Rais and Cale Arraez in several European sources, particularly in Spain, France and Italy.
The conquest of Tunis occurred in 1535 when the Habsburg Emperor Charles V and his allies wrestled the city away from the control of the Ottoman Empire.
Siemen Danziger, better known by his anglicized names Zymen Danseker and Simon de Danser, was a 17th-century Dutch privateer and Barbary corsair based in Ottoman Algeria. His name is also written Danziker, Dansker, Dansa or Danser.
The Battle of Gibraltar took place on 10 August 1621, during the Eighty Years' War between the Spanish Empire and the Dutch Republic. A Dutch East India Company fleet, escorted by a squadron under Willem Haultain de Zoete, was intercepted and defeated by nine ships of Spain's Atlantic fleet under Fadrique de Toledo while passing the Strait of Gibraltar.
The Battle of Cape Celidonia took place on 14 July 1616 during the Ottoman-Habsburg struggle for the control of the Mediterranean when a small Spanish fleet under the command of Francisco de Rivera y Medina cruising off Cyprus was attacked by an Ottoman fleet that vastly outnumbered it. Despite this, the Spanish ships, mostly galleons, managed to repel the Ottomans, whose fleet consisted mainly of galleys, inflicting heavy losses.
The battle of Alboran took place on 1 October 1540 off the isle of Alboran during the Ottoman-Habsburg struggle for control of the Mediterranean when a Spanish fleet under the command of Bernardino de Mendoza destroyed an Ottoman fleet commanded by Ali Hamet, sinking a galley and capturing 10 other ships.
The capture of Mahdia was an amphibious military operation that took place from June to September, 1550, during the struggle between the Ottoman Empire and the Spanish Habsburgs for the control of the Mediterranean. A Spanish naval expedition under the command of the Genoese condottiero and admiral Andrea Doria and the Spaniard Bernardino de Mendoza, supported by the Knights of Malta under their Grand Master Claude de la Sengle, besieged and captured the Ottoman stronghold of Mahdia or Mahdiye, defended by the Ottoman Admiral Turgut Reis, known as Dragut, who was using the place as a base for his piratical activities throughout the Spanish and Italian coasts. Mahdia was abandoned by Spain three years later, and all its fortifications were demolished to avoid a re-occupation of the city by the Ottomans.
Between April and June 1563 the Regency of Algiers launched a major military campaign to retake the Spanish military-bases of Oran and Mers el Kébir on the North African coast, occupied by Spain since 1505. The sieges of Oran and Mers El Kébir of 1563 represented a major Hispano-Algerian episode in the larger Ottoman-Habsburg wars of the Mediterranean. The Kingdom of Algiers, the Principalities of Kabyle, and other vassal tribes combined forces as one army under Hasan Pasha, son of Hayreddin Barbarossa, and Jafar Catania. The Spanish commander brothers, Alonso de Córdoba Count of Alcaudete and Martín de Córdoba, managed to hold the strongholds of Oran and Mers El Kébir, respectively, until the relief fleet of Francisco de Mendoza arrived to successfully defeat the offensive.
The action of 28 November 1751 was a naval engagement off Cape St. Vincent between a squadron of two Spanish ships of the line under captain Pedro Fitz-James Stuart and an Algerine squadron of two ships of the line under corsair Mohammed Chirif, which was fought from November 28 to December 2, 1751, and resulted in a victory for the Spanish fleet. The Algerine ships had come from the port of Algiers, and were acting as corsairs, conducting commerce raiding against Christian merchant ships and enslaving their crews. This was part of the Barbary slave trade, where the Barbary states, autonomous vassals of the Ottoman Empire, raided Christian settlements and merchant vessels for slaves to sell in their own cities. The corsairs targeted Spain, a Christian country, and the Spanish Navy was sent to track down the formidable Algerine force of two ships of the line, which posed a significant threat to any Christian vessels in the region. When the fleets sighted each other on November 28, 1751, they found that they were evenly matched with their opposition; both fielded two ships of the line.
The 2nd Bombardment of Algiers took place between 12 and 21 July 1784. A joint Spanish-Neapolitan-Maltese-Portuguese fleet commanded by the Spanish Admiral Antonio Barceló bombarded the city, which was the main base of the Barbary corsairs, with the aim of forcing them to interrupt their activities. The second bombardment followed a similarly failed expedition the preceding year.
The Battle of Cape Corvo was a naval engagement of the Ottoman–Habsburg wars fought as part of the struggle for the control of the Mediterranean. It took place in August 1613 near the island of Samos when a Spanish squadron from Sicily, under Admiral Ottavio d'Aragona, engaged an Ottoman fleet led by Sinari Pasha. The Spanish were victorious and captured seven galleys and about 600 prisoners, among them the Bey of Alexandria and another 60 important Ottoman nobles. Cape Corvo was the first major victory of the Spanish fleets under Pedro Téllez-Girón, 3rd Duke of Osuna, the Spanish Viceroy of Sicily, as well as the greatest Spanish victory over the Ottoman Empire since the Battle of Lepanto.
The Battle of Girolata was a naval action fought between Genoese, Spanish, and Ottoman ships on 15 June 1540 in the Gulf of Girolata, on the west coast of the island of Corsica, amidst the war between Charles V of Spain and Suleiman the Magnificent. A Spanish squadron of 21 galleys led by the Genoese Gianettino Doria and the Spaniard Berenguer de Requesens surprised an Ottoman squadron of 11 galleys, anchored at Girolata, led by the Ottoman admiral Dragut, whom the commander of the Ottoman Navy, Hayreddin Barbarossa, had committed to raid the Italian coast after his victories in the Adriatic sea the year before. As the crews of the Ottoman warships were ashore, distributing the booty from recent raids, the Spanish-Genoese fleet easily overtook them, taking all 11 Ottoman galleys and making 1,200 prisoners, among them Dragut, who was carried to Genoa and put, together with his captains, to row in Andrea Doria's galleys.
The Battle of Cape Palos was a naval engagement that took place between 9 and 10 June 1758, during the Spanish-Barbary Wars. A Spanish squadron of three warships intercepted an Algerian squadron of two warships escorting a prize ship. After a prolonged fight, the Algiers flagship surrendered. His consort eluded the battle, but wrecked and the prize ship escaped. Algiers flagship sank from the damage, but there were several prisoners and Christian slaves released.
Until 1815 the Beylik of Tunis maintained a corsair navy to attack European shipping, raid coastal towns on the northern shores of the Mediterranean and defend against incursions from Algiers or Tripoli. After 1815 Tunis tried, with limited success, to create a modern navy, which fought in the Greek War of Independence and the Crimean War.
The ta'ifa of raïs or the Raïs for short, were Barbary pirates based in Ottoman Algeria who were involved in piracy and slave trade in the Mediterranean Sea from the 16th to the 19th century. They were an ethnically mixed group of seafarer, including mostly "Renegades" from European provinces of the Mediterranean and the North Sea, along with a minority of Turks and Moors. Such crews were experienced in naval combat thus making Algiers a formidable pirate base. Its activity was directed against the Spanish empire, but it did not neglect the coasts of Sicily, Sardinia, Naples or Provence. It was the Taifa which, through its captures, maintained the prosperity of Algiers and its finances.
Tuscany 
Papal States 
Regency of Algiers 
Diego Pimentel (WIA)