He accompanied Argentine Nahuel Moreno in the foundation and in the top direction for 8 years of the International Workers League - Fourth International (LIT-CI), which fought intransigently all Stalinist governments around the world, coming to act clandestinely sustained in the countries under red tyrannies after the Iron Curtainand in the USSR itself, until its collapse caused by the democratic political revolutions with which Franceschi actively collaborated in its preparation for 18 years.