Navy saw a chance to supress Algiers after it no longer needed to source supplies from them during their war with France
Admiral Pellew led a Naval squadron and secured treaties with the Beys of Tunis, Tripoli and Algiers
However, before he returned to Britain, 200 captured Corsicans, Sardinians and Sicilians were massacred on the Algerian island of Bona
Pellew returned with a larger fleet the next year and fired 50,000 cannonballs, sinking 40 vessels
The Beys of Algiers surrendered the next day and repaid over £80,000 in ransom money and freed 3,000 slaves