William Joseph Slim "1st Viscount Slim"

Few generals have ever turned retreat into victory as completely as Field Marshal William Joseph “Bill” Slim, 1st Viscount Slim. In 1942 he inherited an exhausted army retreating from Burma before a seemingly unstoppable Japanese advance. Three years later, the army he had rebuilt had shattered the Japanese offensive at Imphal and Kohima, crossed the great rivers of Burma, captured Meiktila and Mandalay, and helped bring about the recovery of Rangoon. Slim’s achievement made him one of the defining British and Commonwealth commanders of the Second World War and earned him the enduring loyalty of the soldiers who knew him simply as “Uncle Bill.”

William Joseph Slim was born in Bristol on 6 August 1891, the son of a commercial traveller. His family could not afford the conventional route through one of Britain’s military academies, and before the First World War he worked as a schoolteacher and clerk while serving in the Birmingham University Officers’ Training Corps. On 22 August 1914, only weeks after Britain entered the war, he was commissioned as a temporary second lieutenant in the Royal Warwickshire Regiment.

Slim went with the 9th Battalion to Gallipoli, where he was seriously wounded in August 1915 and evacuated to Britain. After recovering, he eventually returned to his old battalion in Mesopotamia, where he was wounded for a second time in 1917. His conduct during the campaign brought him the Military Cross, officially gazetted on 7 February 1918. The London Gazette records him as Lieutenant and temporary Captain William Joseph Slim among the officers awarded the Military Cross. His First World War service had already established the qualities that would define his later career: physical courage, resilience, self-criticism and an unusual ability to understand the soldiers he commanded.

Determined to make the Army his profession, Slim transferred to the Indian Army in 1919 and in 1920 joined the 1st Battalion, 6th Gurkha Rifles, becoming battalion adjutant the following year. His interwar advancement was steady rather than spectacular. He excelled at the Staff College at Quetta, served at Army Headquarters in India, taught at the Staff College, Camberley, and attended the Imperial Defence College. In 1938 he took command of the 2nd Battalion, 7th Gurkha Rifles. Money remained tight, and Slim supplemented his Army income by writing short stories and articles under the pen name Anthony Mills.

The Second World War transformed his career. Commanding the 10th Indian Infantry Brigade in East Africa, Slim fought against Italian forces and was wounded for a third time in January 1941 when his vehicle was attacked from the air during operations in Eritrea. He later commanded the 10th Indian Division through the campaigns in Iraq, Syria and Persia. For his gallant and distinguished services in those operations between April 1941 and February 1942, he was appointed a Companion of the Distinguished Service Order on 14 January 1943. The award was specifically announced by the War Office for service in Iraq, Syria and Persia.

Then came Burma.

In March 1942, Slim was ordered to take command of the newly formed Burma Corps. Rangoon had already fallen, communications were collapsing, and British, Indian and Burmese forces were being driven northward by the Japanese. Slim could not save Burma, but he could save the army. Through a fighting withdrawal of roughly 900 miles, he kept the retreat from becoming a rout and brought the surviving force into India. It was a defeat, but Slim studied it relentlessly. The lessons of 1942 became the foundation of his later victories.

In October 1943, Slim took command of the newly formed Fourteenth Army, later remembered as the “Forgotten Army.” He understood that defeating Japan in Burma required more than reinforcements. His soldiers had to believe that the Japanese could be beaten. Slim transformed training for jungle warfare, improved medical care and casualty evacuation, expanded the use of air supply, encouraged aggressive patrolling, and developed the concept of surrounded formations holding defensive “boxes” instead of automatically retreating when their communications were cut. Infantry, artillery, armour and aircraft were increasingly coordinated as parts of a single battlefield system. Most importantly, Slim restored confidence.

The decisive test came in 1944 at Imphal and Kohima, where Japanese forces attempted to invade India. Slim’s army held, fought while surrounded and remained supplied from the air. The Japanese offensive was broken at enormous cost. The National Army Museum records Japanese losses of more than 60,000 men during the campaign. The aura of Japanese invincibility in Southeast Asia had been destroyed.

Slim immediately turned defence into pursuit. Fourteenth Army crossed the Chindwin, advanced through the monsoon, secured crossings over the Irrawaddy, and struck at the heart of the Japanese position in central Burma. Meiktila and Mandalay fell in March 1945. The advance continued southward until Rangoon was recovered in May. Slim had taken an army that had retreated from Burma in defeat and brought it back as a victorious multinational force of British, Indian, Gurkha and African troops. Lord Mountbatten later described him as “the finest general World War II produced.”

His wartime service brought a succession of senior honours. Slim was appointed CBE in 1942, received the DSO in 1943, became CB and then KCB in 1944, and was advanced to Knight Grand Cross of the Order of the British Empire in 1946. The 1946 New Year Honours formally named General Sir William Joseph Slim, KCB, CBE, DSO, MC, as an Additional Knight Grand Cross of the Military Division of the Order of the British Empire. These honours accompanied, rather than created, a reputation that had already been won among the troops who fought under him.

After the war, Slim became Commandant of the Imperial Defence College. He retired from the Army in 1948, but the retirement was brief. Later that year he was recalled to become Chief of the Imperial General Staff, the professional head of the British Army, and on 4 January 1949 he was promoted field marshal. Slim was the first officer whose principal career had been in the Indian Army to rise to the position of CIGS.

His standing continued to be recognised at the highest level. In January 1950 he was promoted Knight Grand Cross of the Order of the Bath, with the London Gazette naming Field Marshal Sir William Joseph Slim as a GCB. The United States had previously appointed him Commander of the Legion of Merit, for which unrestricted British permission to wear the decoration was gazetted in 1948. He was subsequently elevated to the American degree of Chief Commander of the Legion of Merit.

In December 1952, shortly before taking up his next great public role, Slim was appointed Knight Grand Cross of the Order of St Michael and St George. He was also appointed a Knight of the Order of St John. On 8 May 1953, he was sworn in as the 13th Governor-General of Australia. His military reputation gave him immediate stature, but his lack of pretension and ease with ordinary Australians helped make him personally popular. He travelled widely and developed a durable working relationship with Prime Minister Robert Menzies.

The royal visit of 1954 brought another distinction. Slim was appointed Knight Grand Cross of the Royal Victorian Order, dated 16 February 1954. The London Gazette formally recorded the promotion while identifying him as Governor-General and Commander-in-Chief of the Commonwealth of Australia.

While in Australia, Slim also produced the book most closely associated with his name. Defeat into Victory, published in 1956, was his account of the Burma campaign. Rather than presenting himself as an infallible commander, Slim wrote openly about mistakes, setbacks, leadership and morale. The work became a classic of military literature and remains closely associated with the study of command and leadership.

In April 1959, Queen Elizabeth II appointed Slim a Knight Companion of the Order of the Garter, one of the highest honours in the British system. The official notice appointed Field Marshal Sir William Joseph Slim to the Order with effect from 23 April 1959. After leaving office as Governor-General on 2 February 1960, he returned to Britain. On 15 July 1960, Letters Patent created him Viscount Slim of Yarralumla in the Capital Territory of Australia and of Bishopston in the City and County of Bristol.

By the end of his public career, his formal distinctions included KG, GCB, GCMG, GCVO, GBE, DSO and MC, together with his Order of St John appointment and the American Legion of Merit. Yet Slim’s historical reputation rests on something less easily represented by titles or ribbons. He understood morale as a weapon, logistics as a condition of victory, and leadership as a relationship of trust between commander and soldier. The men of Fourteenth Army did not remember him because he looked like a great general. They remembered him because they believed he understood them.

Field Marshal William Joseph Slim, 1st Viscount Slim, died in London on 14 December 1970, aged 79. He received a full military funeral at St George’s Chapel, Windsor, after which he was cremated. He is commemorated by a memorial plaque in St Paul’s Cathedral and by the statue of him on Whitehall.

From Gallipoli and Mesopotamia to Imphal, Kohima, Mandalay and Rangoon, Slim’s career spanned two world wars and the final decades of the British Indian Army. His greatest legacy was not simply that he won in Burma. It was that he took an army that had experienced defeat, taught it to believe it could win, and then proved it on one of the hardest battlefields of the Second World War.