Buenos Aires virtually declared her independence of the other provinces by this action, but the latter took no further steps to force her into their union. Urquiza and his followers had, however, accomplished more toward uniting the Argentine into a firmly knit nation than had been done in the previous forty years. The opposition of Buenos Aires helped convince the other provinces of the necessity of a union. With the mouth of the river in the hands of a hostile state more powerful than any one of them separately, the position of Entre Rios, Santa Fe, or any one of the others, would have been critical. Only by uniting could they hope to maintain themselves and avoid absorption in detail. Intelligent Argentines had long been convinced of the desirability of a firm and enduring union, and the present danger crystallised that conviction in men's minds. Back of all this was Urquiza's influence. At last a military chief had come to the possession of supreme power who was willing to aid his country in establishing a stable and free government, and whose purpose was not merely the gratification of his own love of power. Argentine writers are divided in their opinion of Urquiza's real abilities, and many think that ignorance and irresolution, rather than a lofty patriotism, caused his moderation after his victory over Rosas. Intelligent foreigners, however, who saw the Plate for themselves during this period are unanimous in praising his character, his dignified bearing, his liberality, and his capacities. Argentina had passed the stage when a military dictator was her natural chief. The day for constitutional government had arrived; Urquiza was a product of his time, and consciously or unconsciously embodied the changed political sentiments of his countrymen.