The German officer Hans Kundt led a mostly Quechua army against a mostly Guarani army during one conflict in this region, which witnessed the first widespread use of air warfare in the Western Hemisphere.
This ecoregion's namesake peccary was discovered to not actually be extinct in 1971. Fortin Toledo marks the western limit of this ecoregion's Russian Mennonite colonies. It is home to the red quebracho tree, an important source of tannin. Its "Austral" section lies south of the Bermejo River, while its (*) "Boreal" section lies north of the Pilcomayo River. The German officer Hans Kundt led a mostly Quechua army against a mostly Guarani army during one conflict in this region, which witnessed the first widespread use of air warfare in the Western Hemisphere. This region lies northwest of the Pampas, and east of the Altiplano. Nonexistent ► oil reserves sparked a namesake 1930s war in, for 10 points, what semi-arid lowland region that mostly lies in Bolivia and Paraguay?
This ecoregion's namesake peccary was discovered to not actually be extinct in 1971.
Gran Chaco (accept Gran Chaco War)