He was, from an early time, responsible for the link between the Lambert group in France and the Healy Group in Britain (later to become the Socialist Labour League), as well as with the American Socialist Workers Party, the main components of the International Committee of the Fourth International (ICFI) from 1953 to 1963.
From an early age, he was accountable for the connection between the Lambert group in France and the Healy Group in Britain (eventually transforming into the Socialist Labour League), as well as with the American Socialist Workers Party, which were the primary elements of the International Committee of the Fourth International (ICFI) from 1953 to 1963.