The armed conflict between the Riograndense Republican Party (PRR) and the opposition to its political dominance in Rio Grande do Sul, apparently ended in the 1923 Revolution, was renewed in a new revolt in 1924.

The dispute for state power mixed with tenentism, a military movement with national ambitions, whose enemy was Artur Bernardes, president of Brazil.

The civilian oppositionists of the Liberating Alliance, led by Assis Brasil, allied themselves with rebellious military personnel, who respected the authority of general Isidoro Dias Lopes.

[2] The scarcity of resources, police surveillance and diplomatic pressure did not prevent Isidoro from plotting a new armed, civil-military uprising in Rio Grande do Sul, in order to divide the government's attention.

[4] The plan drawn up by the exiles envisaged civilians crossing the border and uprisings in the army garrisons in that region, such as the 5th Independent Cavalry Regiment (RCI), from Uruguaiana.

[3][5][6] Pressure from the Uruguayan authorities induced Adalberto Corrêa and Honório Lemes to bring forward the plan, taking action on their own at the end of September.

[7] Before crossing the border into Brazilian territory, the Santa Vitória do Palmar invasion force passed through a region heavily garrisoned by the Uruguayan Army and police, where it was detected.

[7] On 21 September, the Maldonado Police Department, suspecting trucks transporting agricultural machinery to the city of Rocha, seized the vehicles, in which they discovered 28 undeclared coffins with gunpowder and ammunition.

[10] The Uruguayans took prisoners and confiscated weapons and ammunition; According to Aldo Ladeira Ribeiro, a historian of the Military Brigade of Rio Grande do Sul, "there is no doubt that the materiel that Adalberto Corrêa intended to bring to Brazil would give some encouragement to his already demoralized fellow adventurers".

[10] On the night of 29 to 30 September, other groups, numbering less than 500 men, crossed the border in the municipalities of Santana do Livramento and Dom Pedrito, under the leadership of "general' Honório Lemes.

Their horsmen, armed with revolvers, rifles, swords, and spears, were easily identifiable:[11] They were all wearing plaid shirts, baggy pants, black accordion boots, a high-crowned, wide-brimmed hat, from which hung a long, wide red ribbon, which fell over their shoulders like a kind of pennant, but which in fact constituted a badge.

[6][16] Oswaldo Aranha witnessed the moment:[17] We were four hundred yards from the enemy; Dr. Flores in front of the 1st line; I [was] in a protective column, when we saw a white flag.

The revolutionaries advanced with their heads down, weapons in their hands pointed at the ground while others, without our interference, fled into the bush, throwing themselves into the Ibicuí River.The part of the column that did not surrender crossed the river at Passo da Conceição, where around twenty men drowned.