The 1919 Third Anglo-Afghan War was a short, chaotic struggle for national sovereignty.
In 1919, the new Afghan Emir Amanullah Khan declared a holy war against the British to secure independence. What followed was a brief, intense conflict across three fronts, marked by intelligence failures, aerial bombing of Kabul, and the eventual recognition of Afghanistan as a fully sovereign nation on the world stage.
The Third Anglo-Afghan War, also known as the War of Liberation, began on 3 May 1919 and concluded on 8 August 1919. The conflict was driven by Emir Amanullah Khan, who sought to solidify his legitimacy and break free from the constraints of the 1879 Treaty of Gandamak, which had long restricted Afghanistan's foreign policy. Amanullah launched a three-pronged invasion of British India, hoping to capitalize on civil unrest following the Amritsar massacre and the post-World War I exhaustion of British forces.
The British were caught off guard by the invasion, a failure of intelligence that led to the creation of the Peshawar Intelligence Bureau. While the Afghan regular army was poorly equipped—relying on obsolete rifles and lacking organized supply chains—they were bolstered by thousands of skilled frontier tribesmen. The British countered with superior technology, including motor transport, wireless communications, and the Royal Air Force, which conducted bombing raids on targets including Jalalabad and Kabul. Despite the British military advantage, their forces were plagued by low morale and widespread desires for demobilization after years of service in the First World War.
The war ended with the signing of the Anglo-Afghan Treaty on 8 August 1919. This agreement granted Afghanistan de jure control over its own foreign affairs and established the Durand Line as the international border. While the war was small in scale, its impact was significant, as it effectively ended the British effort to manage Afghan external relations. The conflict also incited long-lasting uprisings in Waziristan, illustrating the complex and volatile nature of the frontier region that persisted until the end of the British Raj.
Source: Third Anglo-Afghan War
