Complex sentence: Paul Robert Ignatius (born November 11,1920) was an American government official who served as Secretary of the Navy between 1967 and 1969 and was the Assistant Secretary of Defense during the Lyndon Johnson administration.
Split into simpler sentences: Paul Robert Ignatius (born November 11,1920) is an American former administrator. He served as Secretary of the Navy between 1967 and 1969 and was the Assistant Secretary of Defense under the Johnson administration.