[1] In Jânio Quadros' resignation in 1960 he allied himself with the generals against the rise of João Goulart: Marshal Odílio Denis, Admiral Silvio Heck, and Brigadier Gabriel Grün Moss.

[7] With Ernesto Geisel's inauguration on 15 March 1974, he was appointed Chief of the Army General Staff on 19 April, where he remained for a short time, until 28 May of that year.

[8] Sylvio Frota assumed the Ministry of the Army on 27 May 1974, after the death of the portfolio holder, General Vicente de Paulo Dale Coutinho.

[1] On 23 August, Geisel asked to approve a text that Frota had prepared to commemorate Soldier's Day;[1] the unusual request generated friction.

On 8 September, Frota threatened the journalist Lourenço Diaféria who praised the heroism of Silvio Hollembach against the figure of Duque de Caxias, patron of the army.

On 10 October, Geisel announced to his closest allies, generals Golbery do Couto e Silva and Hugo Abreu, that he would fire Sylvio Frota within two days, when it would be a holiday in Brasilia.

The resignation was published in the Official Gazette as well as the appointment of Fernando Belfort Bethlem, ex-commander of the Southern Military Command, as successor.

[1] After his dismissal, feeling ideologically upset, he withdraws from political life, despite demonstrations in favor of his candidacy, with the support of military leaders such as Marshal Odílio Denys, Admiral Augusto Rademaker and Brigadier Márcio de Sousa Melo.