The Battle of Boquerón, the first major battle of the Chaco War, commences.

The Battle of Boquerón was fought September 9–29, 1932, between the Bolivian and Paraguayan armies in and around the stronghold of Boquerón. It was the first major battle of the Chaco War. The outpost (fortín) of Boquerón, among others, had been occupied by Bolivian troops since late July 1932…