During the 19th Century Britain entered into three brutal wars with Afghanistan, each one an imperial struggle for power that saw the British forces trying, and failing, to gain control of an inhospitable and impenetrable region. The first two wars (1839 - 42, 1878 - 81) were attempts to expunge pro-Russian sympathies, and thehe third, in 1919, a result of an Afghan-declared holy war against British India. In the last of the three, over 100,000 Afghans...