The football clubs of which country were the most successful in the Intercontinental Cup history?
The Intercontinental Cup was an official international football competition contested usually between the winners of the European Champions' Cup (now the UEFA Champions League), and the South American Copa Libertadores. From its formation in 1960 to its abolition in 2004, Argentinian clubs won the title 9 times, making Argentina the most successful nation in the cup's history.