The Republican Government and Prime Minister António Maria da Silva, knowing of the forthcoming coup, try to organize resistance believing the uprising can be defeated.
May 28, A Military coup d'état (henceforth known as the 28th May 1926 coup d'état) begins in Braga led by Gomes da Costa. Believing it to have failed, Gomes da Costa announces his surrender.
Acordo Missionário (Missionary Agreement) between the Catholic Church and the Portuguese Republic, giving special status to the action of the Catholic Church in Portugal's colonies.
Failed Republican revolucionary attempt against the Ditadura Nacional.
The Portuguese Communist Party is reorganized under Bento Gonçalves. Adapting the Party to its new illegal status, the reorganization creates a net of clandestine cells to avoid the wave of detentions.
October 8, Although officially neutral during World War II, Portugal, after considerable pressure from the Allies, allowed the British the use of the ports of Horta on Faial Island and Ponta Delgada on São Miguel Island, as well as the airfields of Lajes on Terceira Island and Santana Field on São Miguel.
The Political Police PVDE is reorganized and renamed PIDE (Polícia Internacional de Defesa do Estado; International Police for the Defense of the State).
In the (fraudulent) Presidential elections, General Norton de Matos, backed by the oppositionist illegal organization MUD tries and fail to win the Presidency of the Republic.
The Portuguese government overhauls the entire colonial system in an attempt to curb criticism on Portuguese Colonialism: all Portugal's colonies were renamed Portuguese Overseas Provinces.
The FNLA - Frente Nacional de Libertação de Angola (National Front for the Liberation of Angola), is founded as União das Populações do Norte de Angola (Union of the Populations of Northern Angola).
March 15, Attacks in northern Angola by the UPA (União do Povo Angolano; Union of the Angolan People), against Portuguese colonists and African populations, causing hundreds of deaths.
The Prime Minister António de Oliveira Salazar takes on himself the office of Minister of National Defense and reorganizes the Government to face the war in Africa.
March 24 - The Academic Crisis of '62 culminates in a huge student demonstration in Lisbon brutally repressed by the shock police, which caused hundreds of students to be seriously injured.
February, The first Party Congress of the PAIGC takes place at liberated Cassaca, in which both the political and military arms of the PAIGC were assessed and reorganised, with a regular army (The People's Army) to supplement the guerilla forces (The People's Guerillas).
6th Congress of the Portuguese Communist Party, one of the most important congresses in the Party's history, after Álvaro Cunhal released the report The Path to Victory – The tasks of the Party in the National and Democratic Revolution, which became an important document in the anti-fascist struggle.
August 6, The Salazar Bridge is inaugurated in Lisbon above the Tagus river. It is the longest suspension bridge in Europe and a replica (made by the same engineers) of the Golden Gate bridge in San Francisco.
Portugal begins a new campaign against the guerillas in Portuguese Guinea with the arrival of the new governor of the colony, General António de Spínola.
November, A United Nations' General Assembly vote recognizes the Independence of Guinea-Bissau, unprecedented as it denounced illegal Portuguese aggression and occupation and was prior to complete control and Portuguese recognition.