![](https://www.historynet.com/wp-content/uploads/2021/06/CHACO-Junkers-960_640.jpg)
Bolivian pilots (from left) Captain Eliodoro Nery, Major Jorge Jordan and 1st Lt. Juan Antonio Rivera stand with a Junkers K-43 bomber during the 1934 Battle of Ballivián. Nery was killed in July, though there were conflicting accounts of his demise. (Courtesy of Antonio Luis Sapienza via Ramiro Molina Alanes)