Fall of Asunción

Rise of the Southern Cone

South America 1869.0105

Fall of Asunción

War of the Triple Alliance, War of the Pacific, rise of Chile, Argentina, and Brazil (5 January 1869)

Historical Map of South American nations

In late 1867, Brazilian and Argentine forces converged on the Paraguayan Fortress of Humaitá, capturing it in July the following year after a lengthy siege. The loss of Humaitá was a critical blow to Paraguay and in January 1869 advancing Brazilian troops occupied Asunción.

Main Events

Treaty of Ayacucho

Dr. Felippe Lopes Netto, on behalf of the Empire of Brazil, signed the Treaty of Friendship and Limits with Dr. Don Mariano Donato Muñoz, of the Republic of Bolivia, at Ayacucho. The treaty established the boundary between the two countries, most importantly assigning what would become the Brazilian state of Acre - at the time the Acre River itself was undiscovered - to Bolivia.

Siege of Mexico City

Republican forces under Porfirio Díaz - supported by the 3,000-strong American Legion of Honor - arrived on the outskirts of Mexico City, occupying the outlying towns of Chapultepec, Tacubaya, and Guadalupe. On 18 June 1867, following news of the capture of Emperor Maximilian, the French and Austrian troops defending the capital declared their neutrality and entered into negotiations with the Republicans. With the loss of their European allies and facing starvation, the Imperial defenders surrendered the capital on 20 June; Díaz entered the city the following day.

Siege of Humaitá

In November 1867, Brazilian and Argentine forces began their land and riverine offensive around the heavily fortified Paraguayan complex at Humaitá. The Brazilian navy broke through on 19 February 1868, repelling fire from the fortress to send a river squadron under Delfim de Carvalho up the Paraguay River. With the Allies in control of the river, the Paraguayans began to withdraw; Humaitá itself was completely abandoned by the time it fell to assault in late July.

Fall of Asunción

After roundly defeating the Paraguayans at Itororó, Avay, and Itá-Ibaté in December 1868, Caxias's mostly Brazilian Allied army marched into Asunción on 5 January. Largely deserted, the Paraguayan capital was subjected to extended looting. Paraguayan President Solano López withdrew into the interior, setting up new capitals first at Luque, then at Piribebuy.

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