On 12 April 2012 , a coup d'état in Guinea-Bissau was staged Hold by elements of the armed forces about two weeks before the second round of a presidential election Change_of_leadership between Carlos Gomes Júnior and Kumba Ialá .

They decided Deciding on General Manuel de Oliveira Gomes da Costa , who agreed Agree_or_refuse_to_act to join Becoming_a_member the plotters on 25 May .

The revolution started Process_start in Braga , commanded Control by General Manuel Gomes da Costa , followed immediately in Porto , Lisbon , Évora , Coimbra and Santarém .

The revolution triumphed Achieve when General Gomes da Costa marched Self_motion on Lisbon along with 15,000 men , being acclaimed Judgment_communication by the people of the city .