Field Marshal Michael John Dawson Walker, Baron Walker of Aldringham, is a retired British Army officer. Commissioned in 1966, he served in Cyprus, Northern Ireland, and in a variety of staff posts in the United Kingdom until 1984. After being given command of a battalion, he was mentioned in despatches for his service during a second tour of duty in Northern Ireland, this time in Derry, and subsequently served a tour on Gibraltar. He was promoted to brigadier, unusually having never held the rank of colonel, and took command of 20th Armoured Brigade in Germany before becoming I Corps chief of staff.
Field Marshal Richard Frederick Vincent, Baron Vincent of Coleshill, was a British Army officer. After serving with British Army of the Rhine he served with the Commonwealth Brigade in Malaysia during the Indonesia–Malaysia confrontation. He commanded 12th Light Air Defence Regiment in Northern Ireland during the Troubles, for which he was awarded the Distinguished Service Order, and later commanded 19th Airportable Brigade. Although he never served as one of the individual service heads, he went on to be Vice-Chief of the Defence Staff in the late 1980s and then Chief of the Defence Staff in the aftermath of the Gulf War. He subsequently became Chair of the Military Committee of NATO in the mid-1990s.
General John Nicholas Reynolds Houghton, Baron Houghton of Richmond, is a retired senior British Army officer and former Chief of the Defence Staff (CDS) of the British Armed Forces. He was appointed CDS in July 2013, following the retirement of General Sir David Richards. He served as Commanding Officer of the 1st Battalion, the Green Howards in Northern Ireland during The Troubles and later became Commander of the 39th Infantry Brigade in Northern Ireland. He deployed as Senior British Military Representative and Deputy Commanding General, Multi-National Force – Iraq during the Iraq War. Later, he became Chief of Joint Operations at Permanent Joint Headquarters and served as Vice-Chief of the Defence Staff until assuming the position of CDS. Houghton retired from the British Army in July 2016, and was succeeded as CDS by Air Chief Marshal Sir Stuart Peach.
General David Julian Richards, Baron Richards of Herstmonceux, is a retired senior British Army officer who was formerly the Chief of the Defence Staff, the professional head of the British Armed Forces. He succeeded Air Chief Marshal Sir Jock Stirrup in this role on 29 October 2010.
General Sir Nicholas Ralph Parker, is a former British Army officer who served as Commander Land Forces until December 2012.
Lieutenant General Sir Frederick Richard Viggers, is a former senior British Army officer who served as Adjutant-General to the Forces immediately prior to his retirement in 2008. He was Gentleman Usher of the Black Rod from 30 April 2009 to 28 October 2010. He also served in Bosnia in the aftermath of the breakup of Yugoslavia, and in the Iraq War.
General Sir Peter Anthony Wall, is a retired British Army officer who served as the Chief of the General Staff, the professional head of the British Army, until September 2014. Wall had previously been the Commander-in-Chief, Land Forces from August 2009 to September 2010. He succeeded General Sir David Richards as Chief of the General Staff in September 2010, the latter going on a month later to be Chief of the Defence Staff.
Lieutenant General Richard Arthur David Applegate CB OBE is a former Quartermaster-General and Master-General of the Ordnance to the Army. He left the British Army in October 2010 and is now a Director of Eagle Strategic Consulting Ltd.
General Sir Nicholas Patrick Carter, is a Kenyan-born former senior British Army officer who served as Chief of the Defence Staff from June 2018 to November 2021.
General Sir Richard Lawson Barrons, is a retired British Army officer. He was Commander Joint Forces Command from April 2013 until his retirement in April 2016.
Lieutenant General Sir John Gordon Lorimer, is a retired senior British Army officer, who served as the Chief of Joint Operations and the Defence Senior Adviser to the Middle East and North Africa. He was appointed Lieutenant Governor of the Isle of Man on 29 September 2021.
Lieutenant General Sir George Pemberton Ross Norton is a retired British Army officer. He was the UK Military Representative to NATO. He is now Commandant Royal College of Defence Studies.
Lieutenant General Timothy Paul Evans, is a retired British Army officer, who served as Commandant of the Royal Military Academy Sandhurst from 2012 to 2013 and then commander of the Allied Rapid Reaction Corps from 2013 to 2016.
Lieutenant General Edward Grant Martin Davis, is a former British senior Royal Marines officer. He was Commandant General Royal Marines from December 2011 to June 2014. He was the Deputy Commander of NATO's Allied Land Command at Izmir, Turkey. He was Governor of Gibraltar from 2016 to 2020.
General Sir Mark Alexander Popham Carleton-Smith, is a senior British Army officer. He served as Chief of the General Staff from June 2018 to June 2022, succeeding General Sir Nick Carter. He was succeeded by General Sir Patrick Sanders. He previously served as Director Special Forces and commanded 22 Special Air Service Regiment.
General Sir Timothy Buchan Radford, is a British Army officer who has served as Commander Allied Rapid Reaction Corps and as Deputy Commander Resolute Support Mission. He is currently Deputy Supreme Allied Commander Europe as of April 2020.
Major General Martin Linn Smith, is a former senior Royal Marines officer who served as Commandant General Royal Marines from 2014 to 2016. He was previously commander of 3 Commando Brigade, and before that Commanding Officer of 30 Commando Information Exploitation Group and Deputy Commander of 3 Commando Brigade. Smith is currently a non-executive adviser of Texo Group.
General Sir Patrick Nicholas Yardley Monrad Sanders, is a senior British Army officer serving as Chief of the General Staff since June 2022.
Lieutenant General Giles Patrick Hill, is a former senior British Army officer. He commanded the 1st Division from 2015 to 2017, was Assistant Chief of the Defence Staff from 2017 to 2019, and served as the Deputy Commander of NATO's Resolute Support Mission in Afghanistan from 2019 until December 2020.
Lieutenant General Robert Andrew Magowan, is a senior Royal Marines officer who currently serves as Commandant General Royal Marines.
United Kingdom 
British Army