BOPE (Portuguese Batalh? O operages Policiais Especiais, which means special police action battalion, belongs to the killer elite Army of Rio de Janeiro Gendarmerie in Brazil. Due to the problem of slum crime, BOPE has rich experience in urban warfare and improved its ability to perform tasks in a limited environment. In fact, it uses weapons more powerful than ordinary civil law enforcement agencies. At present, the size of BOPE is 400 people. Is BOPE regarded as PMESP (National Military Policy)? Sao Paulo (Sao Paulo Gendarmerie) was the most violent military force in Latin America before. The slogan is "(Faca na Caveira, knife in skull)", which stands for black color.