The title chief of staff identifies the leader of a complex organization such as the armed forces, institution, or body of persons and it also may identify a principal staff officer (PSO), who is the coordinator of the supporting staff or a primary aide-de-camp to an important individual, such as a president, or a senior military officer, or leader of a large organization.
The Brazilian Army is the branch of the Brazilian Armed Forces responsible, externally, for defending the country in eminently terrestrial operations and, internally, for guaranteeing law, order and the constitutional branches, subordinating itself, in the Federal Government's structure, to the Ministry of Defense, alongside the Brazilian Navy and Air Force. The Military Police and Military Firefighters Corps are legally designated as reserve and auxiliary forces to the army. Its operational arm is called Land Force. It is the largest army in South America and the largest branch of the Armed Forces of Brazil.
The Armed Forces Movement was an organization of lower-ranking officers in the Portuguese Armed Forces. It was responsible for instigating the Carnation Revolution of 1974, a military coup in Lisbon that ended Portugal's corporatist New State regime and the Portuguese Colonial War, which led to the independence of Portugal's overseas territories in Africa. The MFA instituted the National Salvation Junta as the provisional national government 1974 to 1976, following a communiqué of its president, António de Spínola, at 1:30 a.m. on 26 April 1974.
José Maria de Vasconcelos, popularly known as Taur Matan Ruak, is an East Timorese politician who served as 8th prime minister of East Timor from 2018 to 2023. He also served as 5th president of East Timor from 2012 to 2017.
General Luís Evangelista Esteves de Araújo was a Portuguese military officer who served as the Chief of Staff of the Portuguese Air Force and as Chief of the General Staff of the Armed Forces from 2011 to 6 February 2014.
João de Matos was an Angolan military general. He led the Angolan force during the Second Congo War to support Joseph Kabila's regime. He died of pancreatic cancer in Spain in 2017.
The Chief of the Joint General Staff of the Armed Forces is the professional head of the Brazilian Armed Forces, who is responsible for the centralizes the coordination and control of the three branches: Army, Navy and Air Force. The position was created through the Complementary Law No. 136 of 25 August 2010, and is guided by Ordinance No. 1429.
General José Carlos de Nardi, is the former Chief of the Joint Staff of the Armed Forces of Brazil. De Nardi was sworn in as the first Chief of the Joint Staff of the Armed Forces by then-Defense Minister Nelson Jobim on 6 September 2010. On 8 December 2015, Admiral Ademir Sobrinho was sworn in as the second Chief of the Joint Staff by Defense Minister Aldo Rebelo.
Zamora Induta is a Guinea-Bissauan military leader He was the Chief of Staff of the Revolutionary Armed Forces of the People of Guinea-Bissau from October 27, 2009 to April 1, 2010.
The Armed Forces General Staff, or EMGFA, is the supreme military body of Portugal. It is responsible for the planning, command and control of the Portuguese Armed Forces.
Antônio Hamilton Martins Mourão is a Brazilian politician and retired military officer who served as the 25th vice president of Brazil from 2019 to 2022.
Raul Botelho is a Brazilian Lieutenant-Brigadier of the Brazilian Air Force, who has served as Chief of the Joint Staff of the Armed Forces of the Brazilian Armed Forces since 2019.
General Geraldo Antônio Miotto was a senior officer of the Brazilian Army. As a member of the Army High Command, he was the Commander of the Amazon Military Command and Southern Military Command.
A military crisis was triggered in March 2021 when Brazil's highest military officials resigned in response to President Jair Bolsonaro's attempts to politicize the armed forces. Since the beginning of his government, Bolsonaro had appointed an unprecedented number of military personnel to civilian positions, seeking to receive, in exchange, support from the military, including through public demonstrations in favor of his government's policies and against the measures adopted by the governors to confront the COVID-19 pandemic, in addition to advocating the decree of the State of Defense, as a way to increase its powers.
The Chief of General Staff of the Angolan Armed Forces is the highest-ranking military officer in the Angolan military and is responsible for maintaining control over the three service branches of the military.
Marcos Antonio Amaro dos Santos is a Brazilian Army general and former Chief of the Brazilian Army General Staff, replacing General Walter Souza Braga Netto.
Admiral Henrique Eduardo Passaláqua de Gouveia e Melo is a Portuguese Navy officer, currently serving as the Chief of the Naval Staff, since December 2021.
Cristóvão Artur Chume is a Mozambican military general who has been the Minister of National Defense since his appointment in November 2021. He had previously served as the Commander of the Army Branch of the Mozambique Defence Armed Forces from March to November 2021.
The Chief of Staff of the Armed Forces of Cape Verde is a major-general, who is the highest-ranked officer in the Cape Verdean Armed Forces.
Renato Rodrigues de Aguiar Freire is a Brazilian military officer. He has served under President Luiz Inácio Lula da Silva as Chief of the Joint General Staff of the Armed Forces since January 9, 2023. Prior to this, he served as Chief of Naval Staff.
Brazil 
Brazilian Army 
Army General 
