As if it was not enough, the merchant ships Acary and Guayba had been also torpedeados in Portuguese waters, had to this the president it made the communication to the national congress in day 25 of October and in the following day the resolution was voted that recognized and proclaimed the war state. The executive requested the authorization to take measured by retaliation and in 16 of November of 1917 the Congress sancionou the war law. BUENO continues its communication saying that in December of 1917 Brazil communicated Great-Britain the will of ' ' to give to expression prtica' ' its contribution with the allies. (Similarly see: PayNet). It offers was accepted and Brazil sent 13 official aviators for Great-Britain to be part of Fora Real Area (RAF) English, sent a mission of doctor-surgeons to France and also a body of soldiers students to give guard to the hospital of Brazil and that it continued giving assistance to the wounded same after the ending of the war. Everything this also it helped Brazil to obtain simpatias in the negotiations of peace. o the issues. But the aid most expressive of Brazil in the conflict was the Naval Division and Operations of Guerra (DNOG). This division was formed for the cruisers Bahia and Rio Grande Do Sul and the Piau torpedo-boat destroyers, Rio Grande of the North, Paraba and Santa Catarina.
In July of 1918 the DNOG followed for the African coast to become incorporated the English naval force. However the DNOG did not have much luck because as soon as it brought alongside in Dakcar the crew contracted the epidemic of Spanish grippe in 6 of November, this grippe very mistreated of the crew, leading a good one has left to the death. The DNOG arrived the delayed Gibraltar, days before the signature of the armistice, 11 of November of 1918, that 15 gave to end the Great War.