The Brazilian Armed Forces (Forças Armadas Brasileiras) is the unified military organization comprising the Brazilian Army (including the Brazilian Army Aviation), the Brazilian Navy (including the Brazilian Marine Corps and Brazilian Naval Aviation) and the Brazilian Air Force. Brazil’s armed forces are the third largest in the Americas, after the United States and Colombia, and the largest in Latin America by the level of military equipment, with 318,480 active-duty troops and officers. With no serious external or internal threats, the armed forces are searching for a new role. They are expanding their presence in the Amazon under the Northern Corridor (Calha Norte) program. Brazilian troops joined United Nations (UN) peacekeeping forces in five countries.