Complex sentence: Ndam Njoya then worked for the Carnegie Endowment for International Peace in Cameroon as director of the diplomatic training program, during which time he helped create and was then the first director of the International Relations Institute of Cameroon (IRIC) (1972-1975).
Split into simpler sentences: Ndam Njoya then worked for the Carnegie Endowment for International Peace in Cameroon as director of the diplomatic training program. During which time he helped create and was then the first director of the International Relations Institute of Cameroon (IRIC) (1972-1975).