He studied as a Brittingham Foreign Scholar at the University of Wisconsin in Madison 1956–1957. After graduating in Law from the University of Rome La Sapienza he joined the Italian foreign service in 1958.
He served as the Italian ambassador to Canada from May 1990 to January 1994. He then became the Deputy Secretary General of NATO before briefly becoming acting Secretary General twice. Firstly by replacing Manfred Wörner on August 13, 1994 after the latter resigned in the last stages of cancer. He was then replaced by Willy Claes on October 17, 1994 who resigned on alleged corruption charges on October 20, 1995.
- "NATO Deputy Secretary General". NATO. Retrieved 12 December 2010.
- "FACULTY DIRECTORY 2008-2009". LOYOLA UNIVERSITY CHICAGO. Archived from the original on 16 March 2009. Retrieved 12 December 2010.
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