 In Brussels, Harrop served under ambassadors Douglas MacArthur II and later Ridgway Knight; he continued to follow African matters and did work relating to Belgian commerce.In 1966, Harrop left Brussels and went to the Congo, spent two years as principal officer at the U.S. consulate in Lubumbashi (the name of which had recently changed from Elisabethville).The region was extremely dangerous at the time; Harrop would arrange for C-130s to be flown down to Katanga during the period of greatest tension.