Forces. During his military career he took part in some 60 battles, seeing more wartime combat than any other future prime minister. No future prime ministers have yet served in the flying services, although Neville Chamberlain (1937–1940) and Winston Churchill (1940–1945 and 1951–1955) were honorary Air Commodores in the Auxiliary Air Force during their respective terms of office. Active service veterans Jacobite Rising (1715) Henry Pelham — Dormer's Regiment — fought Battle of Preston Jacobite Rising (1745) Lord Rockingham — Colonel of volunteers raised against invasion from Scotland Seven Years' War Lord Shelburne — Colonel, 20th Foot — Canada, France, Germany French Revolutionary and Napoleonic Wars The Duke of Wellington — Field Marshal, Army — Flanders, India, Peninsular War and Waterloo Campaign In addition, the following served in home-based militia, volunteer, or yeomanry units raised during the same wars, but were not deployed abroad: William Pitt the Younger — Colonel of volunteers (he was serving when he died in office in 1806) Lord Grenville — Major of yeomanry, Lieutenant-Colonel of volunteers Henry Addington — Captain of volunteers Spencer Perceval — Volunteer, London and Westminster Light Horse Lord Liverpool — Colonel of fencible cavalry, later of militia Lord Goderich — Major of yeomanry Robert Peel — Captain of militia Lord Melbourne — Major of volunteer infantry Lord Palmerston — Captain of volunteers, Lieutenant-Colonel of militia Lord Russell — Captain of militia Mahdist War Winston Churchill — Lieutenant, 4th Queen's Own Hussars, attached 21st Lancers Second Boer War Winston Churchill — Lieutenant, South African Light Horse and war correspondent (prisoner of war) World War I Winston Churchill — Major, Grenadier Guards, later Lieutenant-Colonel, Royal Scots Fusiliers — Western Front Clement Attlee — Major, South Lancashire Regiment — Gallipoli Campaign, Mesopotamian campaign and Western Front (wounded) Anthony Eden — Major, Rifle Brigade — Western Front Harold Macmillan — Captain, Grenadier Guards — Western Front (wounded) World War II Edward Heath — Lieutenant-Colonel, Royal Artillery — North West Europe James Callaghan — Lieutenant, Royal Navy — East Indies Although Eden and Alec Douglas-Home were Territorial Army officers at outbreak of war in 1939, neither was mobilised and the latter was invalided due to disabling spinal tuberculosis. War-bereaved The following lost close relations in their lifetimes as a result of war: Lord Rosebery — one son killed in action in the First World War H. H. Asquith — one son killed in action in the