Promoted to lieutenant colonel in 1993,[7] Riley undertook a tour as an instructor at the Staff College, Camberley, that year. He was deployed as commanding officer of the 1st Battalion the Royal Welch Fusiliers to the Muslim enclave of Goražde in 1995 under a mandate to ensure the Serbs did not violate the NATO ultimatum. The Army of Republika Srpska attacked the town without warning, capturing 33 soldiers under Riley's command and several hundred other fellow United Nations peacekeepers in May. Having halted the initial Serb attack, the battalion handed over the defence of the enclave to the Bosnian 81st Division. During the siege that followed, protocol was broken when, first, the Director of Military Operations, then the Chief of the General Staff, and, finally, Prime Minister John Major telephoned Riley to be briefed on the situation.[8] The enclave was successfully defended and unlike Srebrenica and Zepa it never fell to the Serbs; the 33 Fusiliers and fellow UN peacekeepers were later rescued safely.[9] Riley was awarded the Distinguished Service Order for gallantry and distinguished services in the Former Republic of Yugoslavia in 1996,[10] and promoted to full colonel in July 1997.[11]
Riley was appointed Director General and Master of the Royal Armouries, Britain's national collection of arms and armour, early in September 2009.[25] Subsequently, he was appointed Visiting Professor in War Studies at King's College London.[26]
Riley joined the UK Independence Party (UKIP) in 2012. He said he "believed passionately that we had to regain our national sovereignty, the control of our laws and our borders, and escape the unelected, unaccountable tyranny of the EU Commission."[27] He later left the party, arguing it had "lost its way" and stating that he disagreed with the views of those who had taken charge at the time.[27]
Riley is on the advisory board of Veterans for Britain, an organisation with the aim "to put forward the Defence and Security arguments for the UK to vote to leave the European Union" and following the referendum to "Support Her Majesty's Government in the task of restoring full sovereign control to all aspects of the defence of the Realm in accordance with that mandate of the people."[28]
On 19 January 2021, Riley re-joined UKIP,[29][30] and was selected as the lead candidate for UKIP for the Mid and West Wales region of the Senedd for the 2021 election.[31] He was not elected to the Senedd, although he received 3,731 votes.[32]
Works
Riley has written and edited a number of books on military history, including:
History of the Queen's, 1959–1970. 1984.
Riley, Jonathon P. (1987). From Pole to Pole: Life of Quintin Riley, 1905–80. ISBN1871999030.
Riley, Jonathon P. (1998). From Pole to Pole: Life of Quintin Riley, 1905–80, revised second edition. ISBN1871999030.
Up to Mametz – and Beyond. 2010.; second edition 2021
A Matter of Honour. The Life, Campaigns and Generalship of Isaac Brock. Robin Brass Studio. 2011. ISBN978-1-896-94165-3. OCLC701589968.; second edition 2012
The Last Ironsides: The English Expedition to Portugal, 1662–1668. Helion and Company. 2014. ISBN978-1-909-98220-8. OCLC884859822.; second edition 2015; paperback edition 2017
The First Colonial Soldiers: A Survey of British overseas territories and their garrisons, 1650–1714. Volume 1: The British Isles, Europe, Asia and Africa (co-authored with Wienand Drenth). Drenth Publishing. 2014. ISBN978-90-818887-2-1.
The First Colonial Soldiers: A Survey of British overseas territories and their garrisons, 1650–1714. Volume 2: The Americas and the Caribbean (co-authored with Wienand Drenth). Drenth Publishing. 2015. ISBN978-90-818887-3-8.
Oft in Danger: the Life and Campaigns of General Sir Anthony Farrar-Hockley. Helion and Company. 2015. ISBN978-1910777251.
Regimental Records of The Royal Welch Fusiliers, Volume V, Part One, November 1918 – May 1940 (co-authored with Peter Crocker and Richard Sinnett). Helion & Company. 2019.
Regimental Records of The Royal Welch Fusiliers, Volume V, Part Two, May 1940 – 1945 (co-authored with Peter Crocker and Richard Sinnett). Helion & Company. 2019.
'Ghosts of Old Companions'. Lloyd George's Welsh Army, the Kaiser's Reichsheer and the Battle for Mametz Wood 1914–1916. Helion & Company. 2019.
Winning Wars. The Enduring Nature and Changing Character of Victory from Antiquity to the 21st Century [Ed Mattahias Strohn], two chapters. Casemate. 2021.
The Colonial Ironsides. English Expeditions under the Commonwealth and Protectorate 1650 – 1660. Helion & Co. 2022.
From Pole to Pole: Life of Quintin Riley, 1905–80, revised and expanded third edition. Golden Duck. 2022. ISBN978-1871999037.