Bettino Craxi had visited Algiers in November 1984, and was warned by president Chadli Benjedid that Algeria was ready to invade that region of Tunisia that was crossed by the pipeline towards Italy, if Bourguiba was not able to guarantee the stability of his own country. Algeria was trying to diversify its foreign policy, feeling isolated by Spain and French President François Mitterrand's accord with Morocco and Libya over Chad. For two years, according to Martini, Italian and Algerian secret services worked together in order, on one hand, to avoid the growing destabilisation of Tunisia spilling over into Algeria, and on the other hand to control pro-Palestinian activities in Italy. Finally, Ben Ali was singled out as possible replacement for Bourguiba: as chief of the Tunisian secret services and as Minister of the Interior, he had opposed plans to execute Islamic fundamentalists. SISMI's action did not have the consent of René Imbot, head of the French secret service, and the USA allegedly was not informed.