Soldier's Day (Dia do Soldado) is observed in Brazil every August 25 to honor the Brazilian Army and commemorate the birthday of Luís Alves de Lima e Silva, a prominent marshal born on this date in 1803. The holiday was established in 1925 and focuses on paying tribute to the Duke of Caxias, who is celebrated as an ideal soldier and one of Brazil's greatest military figures. Luís Alves had a distinguished military career, participating in several key conflicts including the Brazilian War of Independence and the Paraguayan War, and he held the title of Baron of Caxias for his military achievements. On this day, Brazilian soldiers engage in ceremonies and activities that reflect their respect for the military's history and contributions.