Just read an article in MHQ bout the Chaco War in 1932-35, which stated that, despite being the 1st modern war in Latin America in the 20th C- incl the utilisation of tanks & strategic bombers (by the better-equipped but ineptly-led Bolivians) & fullscale WWI-style trench warfare involving futile Bolivian frontal assaults on Paraguayan fortifications bristling with machineguns & mortars- the conflict was virtually totally ignored by the US, Britain & other major powers. WI the Chaco War however had been taken more notice of by both future allied & Axis powers ? What impact for the wars into the 1930s then WWII itself ?
http://en.wikipedia.org/wiki/Chaco_war
http://en.wikipedia.org/wiki/Chaco_war