History of the Chaco War, with a particular focus on air operations.

Pictures of tanks used by the Bolivian Army in the Chaco War.

Summary history of the Chaco War.

Images of key figures and events from the Chaco War.

Account of the dispute between Bolivia and Paraguay, when both landlocked countries sought an expansion of territory in an effort to gain better access to the Paraguay river.

Review of "The Chaco War" by Bruce Farcau, with background information on the conflict.

Illustrated history of the 1932-35 conflict between Paraguay and Bolivia.