[3] As Hamilton's Foot, it served in Flanders during the Nine Years War and at Namur on 31 August 1695, took part in the capture of the Terra Nova earthwork, later commemorated in the song 'The British Grenadiers.

[6] The war ended with the 1713 Peace of Utrecht and in 1718, the regiment joined the garrison of the British-held island of Menorca, where it remained here until 1742, with the exception of a detachment sent to Gibraltar in 1727.

[8] When the American War of Independence began in April 1775, most of the unit was in Boston; for the first time in over 50 years, it saw action at Lexington, Concord and Bunker Hill.

[9] Boston was abandoned in early 1776 and the regiment evacuated to Nova Scotia, where many of its men were drafted into other units, then to Dover Castle in England.

[14] On 19 November 1807, 120 members of the 18th Regiment of Foot were drowned when HM Packet Ship Prince of Wales sank in Dublin Bay.

[19] It took part in the Siege of Sevastopol during the Crimean War; Captain Thomas Esmonde was awarded the Victoria Cross for saving a party of colleagues from a fire of shell and grape.

[31][3] The 1st Battalion landed at Le Havre as part of the 82nd Brigade in the 27th Division in December 1914 for service on the Western Front but moved to Salonika in November 1915.

[33] The 2nd Battalion landed at Boulogne-sur-Mer as part of the 8th Brigade in the 3rd Division in August 1914 for service on the Western Front but was almost completely destroyed at the Battle of La Bassée in October 1914 with many men being taken as prisoners of war.

[33] The battalion was re-formed in October 1914 and, as part of the 22nd Brigade in the 7th Division saw further action at the Battle of the Somme, when it was involved in capturing three miles of the German frontline trenches, in Autumn 1916.

[3] With the simultaneous outbreak of the Irish Civil War conflict some thousands of their ex-servicemen and officers contributed to expanding the Free State government's newly formed National Army.