of cavalry was deflagrated and the first cannon roared should be dedicated to the preparation. The Imperial Government, even in the face of the Admiral's requests and warnings, decided nothing immediately, probably due to the complete ignorance of the enemy territory and its real state of mobilization. After the invasion of the Province of Corrientes by Solano López, Tamandaré sends a request to the Minister of the Navy on how he should proceed in the general campaign plan, and his response is the authorization to put into practice his ideas previously exposed to the Court. It ordered the blockade of the Paraguayan ports in the Paraná River, in order to suppress that Republic and to allow the support to the forces of the Army. Still thinking about mobility and supply, he bought tons of coal in the Province of Corrientes and elsewhere along the Paraná River. Predicting the aggravations of events during the conflict, he requested in all his communications for reinforcements; "Every lost day will matter to us in increasing expenses and sacrifices, to achieve the same result that could be obtained with energy and decision." The multiple and complex political and military problems that hampered the naval action of the Empire in the River Plate, demanded of Tamandaré an intense performance between Montevideo and Buenos Aires. The Brazilian neighbors at the time despite dislike the Solano López Government were not anxious to engage in a war in the region due to issues of internal dispute, in addition to that, a war-torn in the region would drastically affect the economy of these extremely connected and interdependent nations. Soon the Admiral would have to work to raise support for the Brazilian Empire as much as possible without putting pressure on these countries, as he could throw them against him. However, López's assault on the territories of the Province of Corrientes in Argentina, facilitated the conviction on the part of Tamandaré and the leaders of those Republics of the need to fight against Paraguay, but even this act of national outrage for the Argentine Republic did not support Brazil directly. In contrast, Flores in Uruguay insisted on reinforcing his support for any party that the Brazilian Empire took. Despite all political outlook on May 19, 1865, the Treaty of the Triple Alliance was signed, ensuring mutual cooperation between Uruguay, Argentina and Brazil for the duration of the conflict with the aggressor