​GANDAMAK, a village of Afghanistan, 35 m. from Jalalabad on the road to Kabul. On the retreat from Kabul of General Elphinstone’s army in 1842, a hill near Gandamak was the scene of the massacre of the last survivors of the force, twenty officers and forty-five British soldiers. It is also notable for the treaty of Gandamak, which was signed here in 1879 with Yakub Khan. (See Afghanistan.)