| "Bending the beam" : myth and reality in the bombing of Coventry, Belfast and Dublin | Hawkins, Richard | Article in Journal | | 1993 |
| "Military manoeuvres" | Fox, John | Article in Journal | | 1996 |
| "No blast or shock" : the test of the "Bee Hive" shelter | Scannell, James | Article in Journal | | 1999 |
| "Our cloud-cap't Grenadiers" : the Volunteers as a military force | Smyth, Peter | Article in Journal | | 1979 |
| "The fragments they shore up against their ruins": loyalism, alienation and fear of change in Gary Mitchell's 'As the Beast Sleeps' and 'The Force of Change' | Gray, Billy | Article in Journal | | 2007 |
| 'Men that came in with the sea': the coastwatching service and the sinking of the 'Arandora Star' | Kennedy, Michael (Michael J.) | Article in Journal | | 2008 |
| 'Not a game of cowboys and indians' - the Ulster Defence Association in the 1990s | McAuley, James White | Article in Book | | 1995 |
| 'The Emergency' - World War II | Gormally, Martin Jarlath | Article in Journal | | 2008 |
| 'You can make your wee film. But no cameras'. Unionism in 2005 | McKay, Susan | Article in Journal | | 2006 |
| A brief history of the 62 Reserve Infantry Bn | Scannell, James | Article in Journal | | 2012 |
| A French project for the invasion of Ireland at the beginning of the eighteenth century | Petrie, Charles Alexander, Sir | Article in Journal | | 1949 |
| A gift box | Cunningham, Jennifer | Article in Journal | | 2011 |
| A military map of Ireland of the late 1790s | Kerrigan, P. M. | Article in Journal | | 1975 |
| A pictorial history of Óglaigh na hÉireann, The Defence Forces of Ireland | | Monograph or Collective Volume | Defence Forces Printing Press | 2016 |
| A rath in Seacashtownland, county Antrim | Lynn, C. J. | Article in Journal | | 1978 |
| A Stillorgan family remembers the Local Security Force | Traynor, John | Article in Journal | | 2016 |
| A tale of two Kerry men drinking after hours in Hayes's Hotel, Tullamorer in 1916 | Byrne, Michael | Article in Journal | | 2016 |
| A testimony to courage : the history of the Ulster Defence Regiment | Potter, John | Monograph or Collective Volume | Leo Cooper | 2001 |
| A woman in defence : a soldier story of the enemy within the Irish army | Molloy, Karina ; Rodgers, Kathryn | Monograph or Collective Volume | Hachette Books Ireland | 2023 |
| AFVs in Irish service since 1922 : from the national army to the Irish Defence Forces | Riccio, Ralph A. | Monograph or Collective Volume | Mushroom Model Publications | 2011 |
| An ancient Norman-French poem on the erection of the walls of New Ross in Ireland, A.D. 1265 | Madden, Frederic, Sir, 1801-1873 | Article in Journal | | 1829 |
| An art in itself : the theory and conduct of small wars and insurgencies : the 2006 Chief of Army Military History Conference | | Monograph or Collective Volume | Army History Unit, Department of Defence | 2006 |
| An introduction to Ulster architecture | Dixon, Hugh | Monograph or Collective Volume | | 1975 |
| An investigation of the town wall at Abbey Street, Wexford | Cahill, MaryRyan, Michael | Article in Journal | | 1980 |
| Anglesey in the Civil War | Dodd, A. H. | Article in Journal | | 1952 |
| Anne returns to her roots | O'Keeffe, Seamus | Article in Journal | | 2010 |
| Army and society in eighteenth-century Ireland | Bartlett, Thomas | Article in Book | | 1990 |
| Barracks closures | Nagle, David | Article in Journal | | 2009 |
| Barracks closures | Nagle, David | Article in Journal | | 2009 |
| Bás Beatha -Surviving a Nuclear War in Ireland | Joye, Lar | Article in Journal | | 2022 |
| Black Cave, Islandmagee, County Antrim: an archaeological survey | Rutherford, GeorgeSpottiswoode, Roland | Article in Journal | | 2010 |
| Breaking ranks : the emergence of representative associations in the Irish armed forces | Martin, Michael | Thesis | | 2010 |
| Caernarvonshire in the Civil War | Dodd, A. H. | Article in Journal | | 1953 |
| Captain John Perry, 1670-1732 | Hamilton, S. B. | Article in Journal | | 1956 |
| Cardinal Cullen and Irish nationality | Steele, Edward David | Article in Journal | | 1975 |
| Carlovians in the Defense Forces 1922-1984 | Nolan, Des | Article in Journal | | 2005 |
| Carlow Castle : medieval stronghold on the Barrow | Murphy, Margaret | Monograph or Collective Volume | Carlow Town Council | 2013 |
| Castles of Britain, 1 : England; 2 : Scotland; 3 : Wales and Northern Ireland | Hammond, Muriel | Monograph or Collective Volume | | 1963 |
| Censorship of the 'Clare Champion' 1917-1918 | Power, Joe | Article in Journal | | 2018 |
| Changing direction : defensive planning in a post-conflict city | Cunningham, Tim | Article in Journal | | 2014 |
| City walls and gateway at site of St Martin's Castle | Moore, Michael | Article in Journal | | 1983 |
| Civil defence : musings of a former C.D. volunteer | O'Mahony, Patrick | Article in Journal | | 2002 |
| Civil Defence in Ireland 1939-45. | Poland, Pat | Article in Journal | | 2018 |
| Coast watch - WW2 | Downey, LiamO'Sullivan, Muiris | Article in Journal | | 2013 |
| Coastguard stations (...the notable services provided by the coastguards and ...the archaeological features associated with coastguard stations) | Downey, LiamO'Sullivan, Muiris | Article in Journal | | 2013 |
| Colonel 'Bob' Holmes, OBE - an Aghadowey hero | Caldwell, Trevor | Article in Journal | | 2017 |
| Constraints on Irish naval operations 1964-1984. Was the naval service the master of its own destiny or a victim of circumstances? | Treacy, John | Thesis | | 2015 |
| Controlling insurrection: Garrisons, Police Barracks and Bridewells in South Tipperary, c.1750 - c.1840 | Butler, David J., 1976- | Article in Journal | | 2005 |
| Counter-insurgency and defence in Ireland 1790-1805 | Stoddart, Peter Charles | Thesis | | |
| Crimes of loyalty : a history of the UDA | Wood, Ian S. | Monograph or Collective Volume | Edinburgh University Press | 2006 |
| Defence | Murtagh, Harman | Article in Book | | 2013 |
| Defence and the new Irish state, 1919-1939 | Young, Peter | Article in Book | | 2004 |
| Defence forces barracks : Collins Barracks Cork | Anonymous | Article in Journal | | 2010 |
| Defence forces barracks : Custume Barracks | Anonymous | Article in Journal | | 2010 |
| Defence from the dispossessed : the state-sponsored garrisoning of the south Tipperary landscape, c.1650 - c.1730 | Butler, David J., 1976- | Article in Journal | | 2004 |
| Defence, counter-insurgency and rebellion : Ireland, 1793-1803 | Bartlett, Thomas | Article in Book | | 1996 |
| Defending English ground : the Tudor frontiers in history and historiography | Ellis, Steven G., 1950- | Article in Book | | 2006 |
| Defending Ireland : the Irish state and its enemies since 1922 | O'Halpin, Eunan | Monograph or Collective Volume | Oxford University Press | 1999 |
| Defending the Kingdom and preserving the constitution : Irish militia legislation 1692-1793 | Garnham, Neal | Article in Book | | 2010 |
| Dev's treatment of Irish Army deserters: vindictive orpragmatic | Kelly, Bernard | Article in Journal | | 2011 |
| DORA, suppression, and nationalist propaganda in Ireland, 1914-1915 | Novick, Ben | Article in Journal | | 1997 |
| Down Ratra Road : fifty years of Civil Defence in Ireland | O'Farrell, Padraic | Monograph or Collective Volume | The Stationery Office | 2000 |
| Dublin's north-eastern city wall : early reclamation and development at the Poddle-Liffey confluence | Burke, Nuala | Article in Journal | | 1974 |
| Dungiven Royal Observer Corps in traininbg during the Cold War | Myles, Liam | Article in Journal | | 2019 |
| England's defence and Ireland's reform : the dilemma of the Irish viceroys, 1541-1641 | Brady, Ciarán | Article in Book | | 1996 |
| Excavations at Dromore motte, Co. Down | Waterman, D. M. | Article in Journal | | 1954 |
| Excavations of a medieval moated site at Rigsdale, County Cork, 1977-78 | Sweetman, P. D. | Article in Journal | | 1981 |
| Fighting the Cold War on Cranagh Hill | McGrattan, Hugh | Article in Journal | | 2013 |
| Financing town walls in medieval Ireland | Thomas, Avril | Article in Book | | 1986 |
| Finner camp : a history | O'Carroll, Declan | Monograph or Collective Volume | Defence Forces Printing Press | 2007 |
| Five years on full alert : memoirs of Major Harry Clark, Major John McConnell and bombardier Godfrey Lindsay as Ulster Anti Aircraft Gunners in World War Two | Clark, Harry H. F., d. 1974Lindsay, Godfrey, 1920-McConnell, John, fl. 1939-1945 | Monograph or Collective Volume | Wallace Clark | 2007 |
| Fortress or refuge? : The walls of Derry in the seventeenth century | Kelly, W. P.Peters, Marie-Claire | Article in Book | | 2015 |
| Francis Thurot and the French attack at Carrickfergus, 1759-60 | Beresford, M. H. T. de la P. | Article in Journal | | 1971 |
| Getting their retaliation in first. 1969 and the re-emergence of paramilitary loyalism | Wood, Ian S. | Article in Journal | | 2009 |
| Going underground in the rebel city | Poland, Pat | Article in Journal | | 2019 |
| Gun Look Out Building | Poston, Matthew | Article in Journal | | 2019 |
| Harry Avery's castle, Newtownstewart, Co. Tyrone : excavations, 1950 | Johnson, E. A.Jope, E. M.Jope, H. M. | Article in Journal | | 1950 |
| Ian Paisley: a critical comment | Southern, Neil | Article in Journal | | 2010 |
| If walls could talk : great Irish castles tell their stories | Connolly, Robert E. | Monograph or Collective Volume | Mentor Press | 2004 |
| Imperial Rearguard : Wars of Empire, 1909-1985 | James, Lawrence Edwin | Monograph or Collective Volume | | 1988 |
| Inishowen's wartime coastwatchers 1939-45 | Kennedy, Michael | Article in Journal | | 2015 |
| Inside the UDA : volunteers and violence | Crawford, Colin | Monograph or Collective Volume | Pluto | 2003 |
| Invasion : defending Britain from attack | Cruickshank, Dan | Monograph or Collective Volume | Boxtree | 2001 |
| Ireland 1949-73 : a closet member of the Commonwealth? | Wynne, Ben | Article in Journal | | 2020 |
| Ireland and the Jacobite rising of 1745 | McLynn, Frank J. | Article in Journal | | 1977 |
| Ireland in Britain and the British seas | Sloan, Geoffrey R. | Article in Book | | 2005 |
| Ireland in French strategy during the American war of independence | Beresford, M. H. T. de la P. | Article in Journal | | 1977 |
| Ireland's coastline : exploring its nature and heritage | Nairn, Richard | Monograph or Collective Volume | Collins Press | 2005 |
| Irish defence forces 1940-1949 : the chief of staff reports | | Monograph or Collective Volume | Irish Manuscripts Commission | 2011 |
| Irish defence policy, 1938-51 | Hayes-McCoy, G. A. (Gerard Anthony) | Article in Book | | 1969 |
| John Murray and the building of the Dun laoghaire Martello Towers | Horner, Arnold | Article in Journal | | 2005 |
| John Philpot Curran : his life and times | Hales, Leslie | Monograph or Collective Volume | | 1958 |
| Lines of resistance : The O'Kelly brothers in the Sudan | O'Sullivan, Niamh | Article in Journal | | 1998 |
| London Meteorological Society and the Schull Barometer | Anonymous | Article in Journal | | 2003 |
| Look out post 6 at Howth Summit | Kinsella, Anthony | Article in Journal | | 2006 |
| Lorrha motte, County Tipperary | Talbot, E. J. | Article in Journal | | 1972 |
| Martello & signal towers | Downey, LiamO'Sullivan, Muiris | Article in Journal | | 2012 |
| Martello Tower No 10, Shenick's Island, Skerries, Co. Dublin | Whearity, Peter F. | Article in Journal | | 2006 |
| Martello Tower No. 7 and the defence of Killiney Bay | Ó Duibhir, Pól | Article in Journal | | 2017 |
| Martello towers and other coastal defenders of the 19th century | McKenna, Rory | Article in Journal | | 2001 |
| Matters military | Connaughton, JoeO'Hora, Pat | Article in Journal | | 2011 |
| Medieval Ennis: Gate houses, laneways and water courses | Ó Dálaigh, Brian | Article in Journal | | 2017 |
| Medieval timber and earthwork fortifications in western Ireland | Graham, B. J. (Brian J.) | Article in Journal | | 1988 |
| Medieval tower houses in the barony of Bunratty Lower | Ryan, Gerrard | Article in Journal | | 1983 |
| Medieval town wall off Lambley's Lane, Cork City | Cleary, R. M. | Article in Journal | | 1988 |
| Memoirs of the past | Loughman, Charlie | Article in Journal | | 1998 |
| Memories of the LDF and FCA in Tomhaggard | Murphy, Hilary | Article in Journal | | 2007 |
| Military bibliography (Parts 1 and 2) | Anonymous | Article in Journal | | 1984 |
| Modern Franco-Irish Military Connections | Hodson, Tom | Article in Journal | | 2022 |
| Mote and mote-and-bailey castles in de Courcy's principality of Ulster | Lawlor, H. C. (Henry Cairnes), 1870-1943 | Article in Journal | | 1939 |
| Mottes in Ireland | Glasscock, R. E. | Article in Journal | | 1975 |
| Mottes in Ireland : a draft list | Glasscock, R. E.McNeill, T. E. | Article in Journal | | 1972 |
| My service life, 1939-1979 : William 'Bill' Balmer | Gamble, Ronnie | Monograph or Collective Volume | Causeway Museum Service | 2009 |
| Non-lethal weapons : peace enablers or troublesome force? assessing the role of CS and baton rounds in the Northern Ireland conflict | Orbons, Sjef | Article in Journal | | 2011 |
| Norman ringwork castles | Twohig, D. C. | Article in Journal | | 1978 |
| Notes on the Volunteers, militia, yeomanry and fencibles of Kerry | Ó Snodaigh, Pádraig | Article in Journal | | 1971 |
| Notes on the Volunteers, militia, yeomanry and Orangemen of County Cavan | Snoddy, Oliver | Article in Journal | | 1968 |
| Notes on the Volunteers, militia, yeomanry and Orangemen of County Waterford | Snoddy, Oliver | Article in Journal | | 1975 |
| Notes on the Volunteers, militia, yeomanry, and Orangemen of Co. Meath | Snoddy, Oliver | Article in Journal | | 1978 |
| Notes on the Volunteers, militia, yeomanry, Orangemen and fencibles in County Limerick | Snoddy, Oliver | Article in Journal | | 1971 |
| Notes. Coastal signal stations in Ireland, 1814 | Kerrigan, Paul M. | Article in Journal | | 2005 |
| Prelude to the Tudor conquest: Henry VIII and the Irish expedition of Thomas Howard, earl of Surrey, 1520-22 | Ellis, Steven G. | Article in Journal | | 2023 |
| Privateers and privateering off the Irish coast in the eighteenth century | Raymond, R. J. | Article in Journal | | 1977 |
| Reasonable doubt : the case for the UDR four | Paisley, Ian, Jr. | Monograph or Collective Volume | Mercier Press | 1991 |
| Ringfort morphology and distribution on the Loop Head Peninsula, County Clare | Chapple, Robert M. | Article in Journal | | 2003 |
| Ross Castle | Fenlon, DonalFenlon, Jane | Article in Book | | 2005 |
| Safe Haven? The archaeology of Bere Island's defence, 1763-1815 | Moloney, ColmShield, Damian | Article in Journal | | 2015 |
| Secrecy and the media : the official history of the D-Notice system | Wilkinson, Nicholas, 1941- | Monograph or Collective Volume | Routledge | 2009 |
| Seventeenth century plans of Dublin Castle | Maguire, J. B. | Article in Journal | | 1976 |
| Signal Stations (1804) and Lookout Posts (1940) studies in comfort on the internet | Ferguson, Kenneth | Article in Journal | | 2023 |
| Signal towers on the West Cork coast | Kerrigan, Paul M. | Article in Journal | | 2003 |
| Silent sentinels : [the Irish treaty forts] | MacCarron, Donal | Monograph or Collective Volume | Nonsuch | 2008 |
| Sir Henry Wilson and the Defence of the British Empire, 1918-22 | Jeffery, Keith | Article in Journal | | 1977 |
| Skerries L.D.F. and Kit Foy remembered | Bourke, Stephanie | Article in Journal | | 2012 |
| Soil Erosion following Deforestation in the Early Christian Period in South Wexford | Culleton, E. B.Mitchell, G. F. (George Francis), 1912-1997 | Article in Journal | | 1978 |
| Soldiers of the short grass; a history of the Curragh Camp | Harvey, Dan | Monograph or Collective Volume | Merrion Press | 2016 |
| Some Considerations concerning the Dating and Distribution of Ring-forts in Ireland | Barrett, Gillian F.Graham, B. J. (Brian J.) | Article in Journal | | 1975 |
| Some police and military aspects of the Irish Volunteers | Ó Snodaigh, Pádraig | Article in Journal | | 1979 |
| Survey of British Commonwealth Affairs : Problems of Wartime Co-operation and Post-War Change, 1939-1952 | Mansergh, Nicholas, 1910-1991 | Monograph or Collective Volume | | 1958 |
| Taxation and defence in late medieval Ireland : the survival of scutage | Ellis, Steven G., 1950- | Article in Journal | | 1978 |
| Teelin Coastguard Station 1873-1921 | Lavelle, Pat | Article in Journal | | 2024 |
| Terrorism and politics : the case of Northern Ireland's loyalist paramilitaries | Bruce, Steve | Article in Journal | | 2001 |
| The army badge | Anonymous | Article in Journal | | 2011 |
| The British Army in Ulster | Barzilay, David | Monograph or Collective Volume | Century | 1973 |
| The castles of Connacht | Salter, Mike | Monograph or Collective Volume | Folly Press | 2004 |
| The castles of county Limerick | Carroll, Michael J. | Monograph or Collective Volume | Bantry Studio Publications | 2005 |
| The castles of Leinster | Salter, Mike | Monograph or Collective Volume | Folly Press | 2004 |
| The castles of south Munster | Salter, Mike | Monograph or Collective Volume | Folly Press | 2004 |
| The castles of Ulster | Salter, Mike | Monograph or Collective Volume | Folly Press | 2004 |
| The coastal defences in Lenan during the Emergency | Campbell, Jack | Article in Journal | | 1991 |
| The defence dimension of early American Federalism | Ickringill, Steve | Article in Journal | | 1992 |
| The defence of Protestant Ireland, 1660-1760 | Connolly, Sean J. | Article in Book | | 1996 |
| The defences of the Shannon : Portumna to Athlone 1793-1815 | Kerrigan, P. M. | Article in Book | | 1980 |
| The development of dominion status, 1900-1936 | | Monograph or Collective Volume | | 1965 |
| The Earl of Bandon and the burning of Castle Bernard, 1921 | Morrissey, Conor J. | Article in Journal | | 2011 |
| The Fixed Defences of Eire in the Emergency, 1940-1946 | Clements, W.H. | Article in Journal | | 2018 |
| The forces of the Crown in Ireland, 1798 | Griffin, W. D. | Article in Book | | 1969 |
| The fortified houses of County cork : origin, fabric, form function and social space | Nunan, Joe | Article in Book | | 2006 |
| The geopolitics of Anglo-Irish relations in the twentieth century | Sloan, Geoffrey R. | Monograph or Collective Volume | Leicester University Press | 1997 |
| The Home Guard | Crea, Willie | Article in Journal | | 1998 |
| The Irish Army and state security policy, 1956-1974 | Longwill, Edward | Thesis | | 2009 |
| The Irish Artillery Corps since 1922 | Riccio, Ralph A. | Monograph or Collective Volume | Mushroom Model Publications | 2012 |
| The Irish hills towers | Barnett, LeRoy | Article in Journal | | 2005 |
| The Irish in India : nabobs, soldiers & imperial service | | Monograph or Collective Volume | Trinity College Dublin Press | 2010 |
| The Irish militia, 1793-1816 : a social and military study | Macanally, H. W. W. | Monograph or Collective Volume | | 1949 |
| The last frontier : defence and settlement in late medieval Ireland | Barry, Terence B. | Article in Book | | 1995 |
| The Lehaunstown camp 1795-1799 | Scannell, James | Article in Journal | | 1999 |
| The libelle of Englyshe polycye : A poem on the use of sea-power, 1436 | | Monograph or Collective Volume | | 1926 |
| The lieutenancy of Lancashire and Cheshire in the 16th and early 17th centuries | Coward, Barry | Article in Journal | | 1968 |
| The local defence force and the local security force in the parish | Keenehan, John | Article in Book | | 2006 |
| The Martello towers of Ireland | Enoch, V. J. | Monograph or Collective Volume | Eason | 1975 |
| The medieval moated sites of County Wexford | Barry, Terence B. | Article in Journal | | 1976 |
| The medieval town wall of Cork | Dower, DenisHurley, Maurice | Article in Journal | | 1981 |
| The militia array of 1756 in Ireland | McAnally, Henry, Sir | Article in Journal | | 1949 |
| The militia in Munster, 1715-1778 | O'Donovan, Jim | Article in Book | | 1989 |
| The moated sites of County Waterford | Barry, Terence B. | Article in Journal | | 1979 |
| The mottes of the Norman liberty of Meath | Graham, B. J. (Brian J.) | Article in Book | | 1980 |
| The New Imperial System, 1783-1815 | Harlow, Vincent Todd | Article in Book | Cambridge | 1940 |
| The Norman motte at Old Ross : method of construction | Colfer, WilliamCulleton, Edward | Article in Journal | | 1974 |
| The politics of Irish defence from the Civil War to the Congo, 1923-1964 | Walsh, Maurice | Thesis | | 1998 |
| The post-medieval coastal landscape of Bantry and Beara, 1580-1850 | Breen, Colin | Article in Book | | 2007 |
| The rampart of the Pale | Devitt, Matthew | Article in Journal | | 1902 |
| The rath in Hillsborough Fort, County Down | Gaskell Brown, B. N. F.Gaskell Brown, Cynthia | Article in Journal | | 1978 |
| The records of the Cabinet Office to 1922 | Anonymous | Monograph or Collective Volume | | 1966 |
| The rise of the yeomanry | Morton, R. G. | Article in Journal | | 1967 |
| The role of Ireland in French war strategy, 1796-1798 | Elliott, Marianne | Article in Book | | 1990 |
| The Roundwood Local Defence Force | Scannell, James | Article in Journal | | 2002 |
| The Royal Irish Artillery, 1755-1801 | Forde, Frank | Article in Journal | | 1973 |
| The sea wall | Scudds, Colin | Article in Journal | | 2007 |
| The stone castles of northern county Antrim | McNeill, T. E. | Article in Journal | | 1984 |
| The storm passed by : Ireland and the battle of the Atlantic, 1940-41 | Allen, Trevor J. | Monograph or Collective Volume | Irish Academic Press | 1996 |
| The town wall fortifications of Athlone | Murtagh, Harman | Article in Book | | 1980 |
| The town wall of Kilkenny | Bradley, John, 1954-2014 | Article in Journal | | 1976 |
| The trucks must get through. Some thoughts for the L. D. F. Transport Officer | Phelan, Patrick | Article in Journal | | 2007 |
| The Tudor conquest (1534-1603) | Hayes-McCoy, G. A. (Gerard Anthony) | Article in Book | | 1967 |
| The Ulster Defence Regiment : an instrument of peace? | Ryder, Chris | Monograph or Collective Volume | Methuen|Mandarin | 1992 |
| The Ulster Defence Regiment : the loyalist militia | Sinn Féin Publicity Department | Monograph or Collective Volume | Sinn Féin Publicity Department | 1990 |
| The Volunteer companies of Ulster, 1778-93 | Paterson, T. G. F. | Article in Journal | | 1967 |
| The Volunteer Movement and the government, 1778-1793 | Ferguson, K. P. | Article in Journal | | 1979 |
| The Volunteers, militia, yeomanry and Orangemen of Co. Kildare in the eighteenth century | Snoddy, Oliver | Article in Journal | | 1971 |
| The walls of Londonderry : the background in European military architecture | Scott, Brian G. | Article in Book | | 2015 |
| To be "kept at all hazards" : the British construction, and spatio-temporal deconstruction of Ireland as subdued threat and strategic asset | McKinley, Michael | Article in Journal | | 1994 |
| Tower houses and terror : the archaeology of late medieval Munster | Barry, Terence B. | Article in Book | | 2004 |
| Towers of strength : the story of the Martello towers | Clements, W. H. | Monograph or Collective Volume | Leo Cooper | 1999 |
| UDA : inside the heart of loyalist terror | Cusack, JimMcDonald, Henry | Monograph or Collective Volume | Penguin | 2005 |
| Ulster mottes : a checklist | McNeill, T. E. | Article in Journal | | 1975 |
| Unneutral Ireland : an ambivalent and unique security policy | Salmon, Trevor C. | Monograph or Collective Volume | Clarendon Press | 1989 |
| Was the 'Monk's Road' covered over in the early 9th century to protect Rattoo? | O'Connor, Noel | Article in Journal | | 2003 |
| Wellington and the defence of the realm, 1819-52 | Patridge, Michael | Article in Book | | 1990 |
| Wicklow Sea Fencibles 1798-1808 | Cleary, Jimmy | Article in Journal | | 2015 |
| Willoughby de Broke and Walter Long : English landed society and political extremism, 1912-14 | Spring, David | Article in Book | | 1996 |