Complex sentence: In November 1958 the Department of State had posted him as Administrative Officer to the U.S. Embassy in Addis Ababa, Ethiopia but he returned to the United States briefly to handle the state visit of Nikita Khrushchev in 1959.
Split into simpler sentences: In November 1958 the Department of State posted him as Administrative Officer to the U.S. Embassy in Addis Ababa, Ethiopia. He returned to the United States briefly to handle the state visit of Nikita Khrushchev in 1959.