The fall of Matamoros marked the beginning of the end.
While reviewing the peripetia of an episode in which ignoble intrigue and treachery have so large a share, it is restful for a moment to pause before the modest figure of General Mejia, whose loyalty was unflinching to the bitter end. The brave Indian had for many months faithfully defended this important post. As true to his flag as President Juarez was to his, he himself had supplied the needs of his army, holding his own and never murmuring until, almost forgotten by his government, he was allowed to fall.
In July, 1866, Tampico and Monterey were, like Matamoros, lost to the Imperialists. The revenue derived from the port of Tampico thereby ceased altogether, and went to strengthen the national party. This event caused a painful shock.
To us in Mexico there was no concealing the fact that the knell of the Mexican empire had struck. Maximilian must fall. How? was the only question.
When, in the course of the winter, the treasury being empty, he had appealed to the French for relief, he had threatened to resign the throne unless they would advance to his administration the funds necessary for its support. The marshal had then, against the formal orders of his own government, supplied the millions necessary to tide over successive crises as they presented themselves; for it was clear that unless funds were immediately forthcoming the empire must collapse.
The French government, however, had censured the marshal's conduct. His situation was fast becoming an impossible one, and in order to obtain security for the French outlay he ordered the seizure of the custom-house of Vera Cruz. Maximilian was furious, and a rumor spread that he was seriously considering his abdication. The Empress, who strongly opposed his taking this step, suggested going abroad herself to see what could be done to save the crown. All confidence was at an end between the young monarchs and the marshal, whom they held responsible for Napoleon's altered attitude. It seemed to them idle to trust to written appeals the force of which must be counteracted by his representations. A personal interview might, however, accomplish much. The situation was reaching an acute crisis. Much bitter recrimination had followed upon the disasters to the imperial forces in the North. Nothing could be worse than the animus on both sides. Altogether, imperial Mexico had become a seething caldron, in which the scum stood a fair chance of rising to the top.
The imperial government, which during the first years of its existence had shown so much jealousy of its own authority, now suddenly changed its policy and sought to throw the whole weight of its responsibilities upon the French. In August, 1866, Maximilian proposed to face the uprising of the republicans throughout the empire, as well as to guard against possible aggression on the part of the United States troops then watching events across the Rio Grande, by declaring a state of siege throughout the empire and by placing the whole executive power of each state in the hands of a French officer. This he urged upon the marshal, who courteously but firmly declined. It was impossible to tell where such a course, if adopted, would lead the French. It must necessarily carry with it serious consequences, the most obvious of which was a probable war with Mexico's Northern neighbor, and there is little doubt that this possibility prompted the suggestion.
Each side accused the other of duplicity with regard to the United States. The Imperialists openly charged the French with delivering up the empire to the republicans, while the French suspected the existence of snares and intrigues set afoot for the purpose of bringing about such complications as might force the French to retain an interest in Mexican affairs. Moreover, attempts, not wholly unsuccessful, were made to sow discord among the French themselves by taking advantage of individual ambitions and of petty jealousies to increase existing difficulties.
The relations between General Douay, then in command of the second division, and the quartier-general had never been cordial. On his way to France, on leave of absence, he passed through the city, and had an interview with Maximilian. This gave rise to much gossip. It was said that General Douay favored a policy totally different from that lately pursued by France, and that he approved of calling upon the French government for reinforcements for the purpose of firmly maintaining the empire; that he and Maximilian had arranged to bring pressure to bear upon the Emperor Napoleon not only to continue but to increase his support, and that Maximilian wished to see General Douay assume command of the French army in the marshal's place.
All this came to nothing, but the relations of the Emperor with the French headquarters were becoming more and more strained, and having begun with political differences, the feud was assuming almost a personal character.