[2] The regiment was initially based at Redford Barracks in Edinburgh before being deployed to Singapore Lines in Aden in 1960.

[2] After taking part in the Gulf War in 1991, the regiment moved to St Barbara Barracks at Fallingbostel in 1993 from where it deployed units to Bosnia in 1994 and to Macedonia and Kosovo in 1999.

[7][8] In April 2023 members of the battalion took part in the reburial of a British Soldier from the 71st Regiment of Foot, Fraser's Highlanders killed at the Battle of Camden in August 1780.

Officers wore red 'infantry' piping on the epaulettes of their greatcoats, a detail inherited from the Royal Scots Fusiliers and mentioned by Boris Pasternak in his book Doctor Zhivago, but long lost to other infantry regiments.

[11] The regiment's uniform included the blue Glengarry cap with red 'tourie', red, white and green dicing, black silk cockade and 'Flaming Grenade' cap badge, Mackenzie tartan trews and black highland brogue shoes worn with white spats.

In the field in combat dress, the Glengarry was replaced, when a helmet is not worn, by a khaki 'tam o'shanter' bonnet with Mackenzie tartan patch and with a white hackle from the Royal Scots Fusiliers when appropriate.

The Regimental capbadge was the 'grenade in flames' taken from the Royal Scots Fusiliers cap badge, on which is mounted the crowned HLI monogram from the Highland Light Infantry.

The Drum major wears Mackenzie tartan trews, fusilier officer's full dress pattern scarlet doublet and bearskin with a grenade cap badge and white hackle.