The Regency of Algiers was a largely independent tributary state of the Ottoman Empire during the early modern period, located on the Barbary Coast of North Africa from 1516 to 1830. Founded by the corsair brothers Aruj and Hayreddin Barbarossa, the Regency was a formidable pirate base infamous for its corsairs. First ruled by Ottoman viceroys, it later became a sovereign military republic that plundered and waged maritime holy war against European Christian powers.
Sheikh Mohamed El-Mokrani, also known as Mohand Amokrane, was one of the principal leaders and the namesake of the Mokrani Revolt of 1871 against the French occupation of Algeria.
The French conquest of Algeria took place between 1830 and 1903. In 1827, an argument between Hussein Dey, the ruler of the Regency of Algiers, and the French consul escalated into a blockade, following which the July Monarchy of France invaded and quickly seized Algiers in 1830, and seized other coastal communities. Amid internal political strife in France, decisions were repeatedly taken to retain control of the territory, and additional military forces were brought in over the following years to quell resistance in the interior of the country.
The Capture of Béjaïa or Capture of Bougie occurred in 1555 when Salah Rais, the Ottoman ruler of Algiers, took the city of Béjaïa from the Spaniards. The main fortification in Béjaïa was the Spanish presidio, occupied by about 100 men under first under Luis Peralta, and then his son Alonso Peralta. The city was captured by Salah Rais from his base of Algiers, at the head of several thousand men and a small fleet consisting in two galleys, a barque, and a French saëte requisitioned in Algiers. Peralta had sent messages to Spain for help, and Andrea Doria prepared to leave with a fleet from Naples, but it was too late.
The Expedition of Mostaganem occurred in 1558, when Spanish forces attempted to capture the city of Mostaganem. The expedition was supposed to be a decisive step in the conquest of the Ottoman base of Algiers, but it ended in failure, and has been called a "disaster".
The Kingdom of the Ait Abbas or Sultanate of the Beni Abbas was a Kabyle, Berber state of North Africa, then a fief and a principality, controlling Lesser Kabylie and its surroundings from the sixteenth century to the nineteenth century. It is referred to in the Spanish historiography as "reino de Labes"; sometimes more commonly referred to by its ruling family, the Mokrani, in Berber At Muqran. Its capital was the Kalâa of Ait Abbas, an impregnable citadel in the Biban mountain range.
The Sultanate of Tuggurt was a state that extended over Tuggurt, the oases of the neighbouring region and the Oued Righ valley between the fifteenth century and 1881. It was governed by sultans of the Banu Djellab dynasty.
The Battle of the Kalâa of the Beni Abbes took place during the winter of 1553 between the regency of Algiers and the Kingdom of Beni Abbas.
The Second Battle of Kalaa of the Beni Abbes took place in October 1559. It opposed the regency of Algiers and its ally of circumstance the Kingdom of Kuku to the Kingdom of Ait Abbas.
The Campaign of Tlemcen or Tlemcen campaign was a military operation led by the Saadians of Mohammed ash-Sheikh against Tlemcen in 1557, then under the domination of the Regency of Algiers, a vassal state of the Ottoman Empire. Mohammed ash-Sheikh, who wanted to conquer Algeria, occupied the city but failed to seize the Mechouar Palace, which was defended by a garrison of 500 men under the command of Caïd Saffa.
The Conquest of Fez or Capture of Fez took place in 1554 between the Algerian forces of Salah Rais and the ruler of the Saadi Sultanate, Mohammed ash-Sheikh. The battle took place on 7 January at Qudyat-al-Mahali, a suburb near Fez and occurred after Salah Reis’ two previous victories against the Saadians, one at Taza and another at the Sebou river.
The Campaign of Tlemcen (1551) was a military operation led by the Regency of Algiers under Hasan Pasha and his ally Abdelaziz, following the capture of Tlemcen by the Saadi Sultanate in June 1550.
Baba Ali Chaouch, also known as Ali Soukali, or simply Ali I, was a ruler of the Deylik of Algiers from 1710 to 1718. He was the first dey of Algiers to be invested with the title of dey-pacha. The Sultan Ahmed III had Ali Chaouch's envoy given the caftan and the three tails, a sign of the dignity of a "pasha". This title was attributed to all his successors until 1830.
The Beylik of Constantine, Beylik of the Sunrise or Beylik of the East as was its official designation, was one of the three Beyliks of the Regency of Algiers . The region liberated itself from the Hafsid Emirate of Béjaïa in the early 16th century, and constituted itself around Constantine in the mid to late 16th century. The Beylik collapsed in the 1837 siege of Constantine during the French conquest of Algeria. The Constantine department was formed upon the bases of the Beylik in 1848.
The capture of Béjaïa was the battle in which the Spanish Empire took possession of Béjaïa, then an emirate ruled by a branch of the Hafsid dynasty. This took place in 1510. The Spanish lost the city again 45 years later to Salah Rais and the Kingdom of Kuku in the Capture of Bougie (1555).
The Tunisian–Algerian war of 1694 was a conflict between the Deylik of Algiers, and the Regency of Tunis.
The Laghouat Expedition were a series of raids led by Morocco, under the reign of Ismail Ibn Sharif from 1708 to 1713.
The Battle of Oued-el-Lhâm was a battle between the Regency of Algiers and the Kingdom of Beni Abbas that took place one year after the Battle of Kalaa which led to this attempt for revenge by the Regency.
The Battle of Oued Zadidja occurred in 1551 after the Saadians violated an alliance with the Regency of Algiers, the Saadians were defeated and their leader was killed.
The Tunisian–Algerian War of 1705 was a conflict between the Regency of Algiers and the Regency of Tunis.
Regency of Algiers 
Kingdom of Ait Abbas 
Sultanate of Tuggurt