WGeneral Sir Robert Arbuthnot, KCB was a British military commander during the Napoleonic Wars. He was a General in the army, a colonel in the 76th Regiment. He was a Brigadier General in the Portuguese Service and was appointed a Knight of the Tower and Sword of Portugal (KTS).
WWilliam Brown was an Irish-born Argentine admiral. Brown's victories in the Independence War, the Cisplatine War and the Anglo-French blockade of the Río de la Plata earned the respect and appreciation of the Argentine people, and he is still regarded as one of Argentina's national heroes. Creator and first admiral of the country's maritime forces, he is commonly known as the "father of the Argentine Navy".
WWilliam Montague Browne was a prominent Irish-born American politician and newsman. During the American Civil War, he served as Acting Secretary of State for the Confederacy in 1862 and as a temporary brigadier general in the Confederate States Army. When he was not confirmed to that rank by the Confederate Senate, he reverted to his permanent grade of colonel.
WThomas Derrig was an Irish Fianna Fáil politician who served as Minister for Lands from 1939 to 1943 and 1951 to 1954, Minister for Education from 1932 to 1939 and 1940 to 1948 and Minister for Posts and Telegraphs in September 1939. He served as a Teachta Dála (TD) from 1921 to 1923 and 1927 to 1957.
WWilliam Evans was an Irish-born soldier in the U.S. Army who served with the 7th U.S. Infantry during the Black Hills War. He participated in campaigns against the Sioux in the Montana Territory and, at Big Horn from July 9–14, 1876, volunteered to deliver critical dispatches between Generals George Crook and Alfred Terry. He later received the Medal of Honor for his heroic actions.
WMike Flanagan was a British soldier of Irish birth who assisted the formation of the Israeli armed forces.
WPhilip Gaughan was a sergeant serving in the United States Marine Corps during the Spanish–American War who received the Medal of Honor for bravery.
WMartin Hunt was an American Private serving in the United States Marine Corps during the Boxer Rebellion who received the Medal of Honor for bravery.
WGeneral Sir James Vaughan Jackson, GCB, KH was an Irish officer in the British Army.
WEdward Jennings VC was an Irish recipient of the Victoria Cross, the highest and most prestigious award for gallantry in the face of the enemy that can be awarded to British and Commonwealth forces.
WMichael Kilroy was an Irish politician and guerrilla leader. He was an Irish Republican Army (IRA) officer in his native County Mayo during the Irish War of Independence and Irish Civil War. Subsequently, he was a Sinn Féin and later Fianna Fáil Teachta Dála (TD) for Mayo South.
WJohn King was an Irish sailor in the United States Navy and one of only 19 in history to receive the Medal of Honor twice.
WJohn MacBride was an Irish republican and military leader executed by the British for his participation in the 1916 Irish Easter Rising in Dublin.
WPatrick McHale VC was born in Killala, County Mayo and was an Irish recipient of the Victoria Cross, the highest and most prestigious award for gallantry in the face of the enemy that can be awarded to British and Commonwealth forces.
WLily McNicholas was an Irish nurse who volunteered in the Second World War. On 7 August 1944, McNicholas survived the sinking of the Amsterdam; a hospital carrier transporting casualties to Britain from Normandy, France. The incident was widely reported in the press after the London Gazette announced that McNicholas and two other nurses were to be awarded the M.B.E. for their heroic actions.
WVice Admiral Mark Mellett, DSM, is an Irish Naval Service admiral and the current Chief of Staff of Ireland's Defence Forces since September 2015.
WPatrick Henry Monaghan was a native of Ireland who fought for the federal government of the United States during the American Civil War as a member of Company F of the 48th Pennsylvania Infantry. He received America's highest award for valor, the U.S. Medal of Honor, for recapturing the regimental flag of the 7th New York Heavy Artillery on June 17, 1864 while fighting in the Siege of Petersburg, Virginia.
WMaurice George Moore, was an Irish author, soldier and politician.
WJeremiah Joseph "Ginger" O'Connell was an Irish revolutionary, active in the Irish War of Independence, and later a senior officer in the Irish Defence Forces.
WChristopher O'Dowd, was an Irish founding member of the British Army's Special Air Service.
WErnie O'Malley was an Irish Republican Army (IRA) officer during the Irish War of Independence and a commander of the anti-Treaty IRA during the Irish Civil War. He wrote three books, On Another Man's Wound, The Singing Flame, and Raids and Rallies. The first describes his early life and role in the War of Independence, while the second covers the Civil War.
WThomas Patten was an Irish volunteer in the Spanish Civil War.
WColonel Arthur Howe Browne, 8th Marquess of Sligo, KBE, styled Arthur Howe Browne until 1903 and Lord Arthur Browne between 1903 and 1941, was an Irish soldier and peer.