In 1839, the forces of Great Britain and the British East India Company invaded Afghanistan in the first major conflict of the "Great Game" – the struggle between Great Britain and Russia for control of Asia. The British quickly defeated the opposing forces of Dost Mohammad and garrisoned the capital Kabul, as well as the major cities of Kandahar and Jalalabad. However, by mid-1841 the situation in Kabul was deteriorating. The British forces made camp in an indefensible position just outside the capital. Meanwhile, two senior British officials were murdered with no reprisal from the British forces, further emboldening the Afghans.
Brydon would survive his wounds and later survive another harrowing incident when we was severely wounded during the Sepoy Mutiny in 1857. General Elphinstone died in captivity. Shortly after the news of the massacre reached British officials, the decision was made to withdraw all British forces from Afghanistan, but not before retribution was sought. By the summer of 1842 the Army of Retribution had been raised and marched through Afghanistan, releasing many of the prisoners taken during the retreat from Kabul as well as exacting their vengeance before finally withdrawing on 12 October 1842.