Complex sentence: Morales' dedication to the cause increased, and from 1984 to 1985 he served as Secretary of Records for the movement, and then in 1985 took on the role of General Secretary of the August Second Headquarters.
Split into simpler sentences: Morales' dedication to the cause increased, and from 1984 to 1985 he served as Secretary of Records for the movement. In 1985 he then took on the role of General Secretary of the August Second Headquarters.