Chaco War 

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The "Tacuary" armed steamer on the Paraguay River. Gunboat "Paraguay", built in Genoa, Italy, sailed into Asuncion on May 5, 1931. 

Paraguayans at the Ballivian trenches fire a mortar.  Lt. Alfredo Stroessner (left) behind a French Schneider 75 mm gun.

A French Schneider gun used by Paraguayans at the battle of Boqueron.

Lt. Agustin Pasmor with his Fleet F-11 at the Lopez de Filippis airfield 
in Camacho, Nov. 1934.