Question: Faugh a Ballagh, is a battle cry of Irish origin, meaning "clear the way", and today it remains the motto of which (27th (Inniskilling) 83rd and 87th and Ulster Defence Regiment) (R IRISH) is an infantry regiment of the British Army?
Related documents: [0]  [DOC] The Royal Irish Regiment (27th (Inniskilling) 83rd and 87th and Ulster Defence Regiment) (R IRISH) is an infantry regiment of the British Army. The regiment was founded in 1992 through the amalgamation of the Royal Irish Rangers and the Ulster Defence Regiment. Their oldest predecessor; the 27th Regiment of Foot; was first raised in June 1689 to fight in the Williamite War in Ireland. Other notable regiments in their lineage include the Royal Inniskilling Fusiliers, Royal Irish Rifles and the Royal Irish Fusiliers (Princess Victoria's). [END] 
[1]  [DOC] Faugh a Ballagh ( ; also written Faugh an Beallach) is a battle cry of Irish origin, meaning "clear the way". The spelling is an 18th-century anglicization of the Irish language phrase Fág an Bealach ] , also written "Fág a' Bealach". Its first recorded use as a regimental motto was by the 87th (Prince of Wales's Irish) Regiment of Foot (who later became the Royal Irish Fusiliers) in 1798. It remains the motto of the Royal Irish Regiment today. [END] 
Answer: 
Royal Irish Regiment
Royal Irish Regiment