But complications in Afghanistan interrupted this work in 1838. Lord Auckland decided on war, and on 1 October 1838 in Simla published the Simla Manifesto, dethroning Dost Mahommed Khan. After successful early operations he was created Baron Eden, of Norwood in the County of Surrey, and Earl of Auckland. However the Afghan campaign ultimately ended in disaster. He handed over the governor-generalship to Lord Ellenborough and returned to England the following year.