 Complete the following phrase:  The 17 years long rule of Rosas was influenced by permanent warfare, both from unitarians and by other countries. The PeruBolivian Confederation, allied with France, declared the War of the Confederation against Argentina and Chile; France supported it by imposing a naval blockade over Buenos Aires, which was maintained even after the Peru-Bolivian defeat. The French helped Fructuoso Rivera to oust the Uruguayan president Manuel Oribe from power, so that Rivera helped them against Rosas. France gave up the blockade, but Rosas still supported Oribe in the Uruguayan Civil War to reestablish his rule in Uruguay. The conflict against Rivera led to a renewed conflict with France, this time allied with Britain. The 