The Lancashire Fusiliers was a line infantry regiment of the British Army that saw distinguished service through many years and wars, including the Second Boer War, the First and Second World Wars, and had many different titles throughout its 280 years of existence. In 1968 the regiment was amalgamated with the other regiments of the Fusilier Brigade – the Royal Northumberland Fusiliers, Royal Warwickshire Fusiliers and the Royal Fusiliers – to form the current Royal Regiment of Fusiliers.

The Royal Northumberland Fusiliers was an infantry regiment of the British Army. Raised in 1674 as one of three 'English' units in the Dutch Anglo-Scots Brigade, it accompanied William III to England in the November 1688 Glorious Revolution and became part of the English establishment in 1689.