 Complete the following phrase:  In December 1849, Williams was promoted from Gentleman Cadet to second lieutet in the Royal Artillery. Further promotions followed: lieutet in 1851, second captain 1856, captain 1863, and major 1872. In 1875, he was made a lieutet colonel and six years later a colonel. During his career, he saw active service in the Crimean War and in central Asia, and was mentioned in despatches during the 