5 ms letters and 3 telegrams written by General George Pomeroy Colley (1835-1881), to Lord Roberts, December 1878 - February 1880, as military secretary, then private secretary to Lord Lytton in the Second Afghan War (1878-1880), discussing the success on the Peiwar, military strategy around Kandahar, future rule and politics of the regions, disposition of troops, congratulations on the occupation of Kabul, the future of Afghanistan, military executions, and looting by troops.