From 1973 to 1975 , he was the Director of Inter-African Affairs in the State Department .
Blane was Deputy Chief of Mission in Fort Lamy ( now N'Djamena ) , Chad , from 1969 to 1972 .
From 1973 to 1975 , Blane was the Director of Inter-African Affairs in the State Department .
Blane was Deputy Chief of Mission in Fort Lamy ( now N'Djamena ) , Chad , from 1969 to 1972 .