Uwechue entered Nigeria's foreign service at its inception in 1960 and served in Cameroon, Pakistan and Mali. In 1966, he opened the Nigerian embassy in Paris as its first envoy. From 1967 to 1967, during the Nigerian Civil War, he acted as Biafra's representative in Paris. He was then made ambassador to Liberia and to United Nations Mission in Côte d'Ivoire.[4][2]
After leaving the foreign service in 1970, Uwechue became a publisher of books and magazines on Africa. He was founder and publisher of the renowned Know Africa books, a three-volume encyclopaedia comprising Africa Today, Africa Who’s Who and Makers of Modern Africa. He was also the publisher of the now-defunct African Today magazine.[5]
In 1999, Uwechue became the Special Presidential Envoy on Conflict Resolution in Africa to former President Olusegun Obasanjo.[2] In that role, Uwechue played an active role in the peaceful resolution of the Sierra Leone Civil War.[1][6]
He was made minister of health under President Shehu Shagari in 1993.[7] From 2000 to 2007, he became the Economic Community of West African States' Special Representative in Cote d’Ivoire during the political crisis in that country.[4]
In 2003, Uwechue was made an officer of the Order of the Federal Republic.[2]
He died on 13 March 2014, at the National Hospital in Abuja, aged 79.[2]
