power, Paraguay. It belonged to Admiral Joaquim Marques Lisboa, Visconde de Tamandaré, then Marquês de Tamandaré, command of the Brazilian Naval Forces in War Operations against the Government of Paraguay. The Brazilian Navy represented practically all of the Naval Power present in the theater of operations. The General Command of the Allied Armies was exercised by the President of the Republic of Argentina, General Bartolomeu Miter. The Brazilian Naval Forces were not subordinate to it, in accordance with the Treaty of the Triple Alliance. The naval strategy adopted by the allies was the blockade. The Paraná River and Paraguay were the arteries of communication with Paraguay. The Brazilian Naval Forces were organized in three Divisions - one remained in the Rio de la Plata and the other two went up the Parana River to effect the blockade. On June 11, 1865, in the waters of the Paraná River, near the confluence of the Riachuelo, the bloody combat was called that received the name of the small affluent. The Brazilian Fleet, under the command of the Chief of Staff Francisco Manuel Barroso da Silva (later Barão do Amazonas), was valiantly beaten throughout the day against the ships of the Paraguayan Fleet, at the orders of Commander Mezza. Several of these were put to the bottom, getting a few seriously broken escape. In the course of the fight, in the Captaincy of Barroso - frigate Amazonas - numerous signs were raised transmitting orders to the other Brazilian commanders. Two of them were especially celebrated: 779- "Brazil expects each one to fulfill his duty" 10- "Hold up the fire that victory is ours" In 1866, for health and political reasons, he asked for his removal from office, being replaced by Admiral Joaquim José Inácio, later Visconde de Inhaúma. At the time of the Proclamation of the Republic of Brazil, on November 15, 1889, the Marquis of Tamandaré remained faithful to Pedro II of Brazil, remaining for about an hour alone with the Emperor, asking him permission for the Imperial Navy to a coup d'état, which was denied him. At the age of 82, and the last of the great royal monarchs of the past still alive (Duque de Caxias, Marquis of Herval, Admiral Barroso, Marshal Polidoro and all others had already died), he refused to accept the end of the Monarchy and remained hopeful of the possibility of a backlash. He remained with