 On November 25, 2010, Rio's special forces battalion (BOPE), supported by other police units, entered Vila Cruzeiro in Penha via Brazilian Marine armored transport to various points within the slum and ultimately took control of the hill and the surrounding area of Penha.This action was in response to attacks throughout Rio by the criminal faction headquartered there.Military and civil police units (which included CORE, "Batalhão de Choque", Federal Police, among others) then took over the territory of the network of favelas comprising the Complexo do Alemão with support from the Brazilian Armed Forces.