The Treaty of Rawalpindi (signed on 8 August 1919 and amended 22 November 1921) was an armistice made between the United Kingdom and Afghanistan during the Third Anglo-Afghan War.[1] In the somewhat ambiguous document, the United Kingdom recognised Afghanistan's independence, agreed that the British Indian empire would never extend past Khyber Pass, and stopped British subsidies to Afghanistan. The Treaty of Rawalpindi is celebrated on Afghan Independence Day, August 19 as part of the Great Game between the Russians and the British that made Afghanistan a buffer zone between their Empires. The amendments and expansion negotiated in 1921 are sometimes called the Anglo–Afghan Treaty of 1921.[2]