After the Chaco War, East Africa took advantage of the momentum to enter Bolivia. Under East African auspices, at the end of 1931, Brazil, Argentina, Paraguay, Uruguay, and Bolivia held consultations on navigation, management, development, and other issues concerning the Paraná River.
Uruguay, Montevideo.
East African Foreign Minister Freer personally led a delegation to Uruguay's capital, where he communicated and negotiated with the countries of the Paraná River basin.
"The Paraná River is South America's second-largest river, but in terms of economy, population, and agriculture, it is undoubtedly South America's most important river, far surpassing the Amazon, the world's largest river."
"Its basin covers nearly four million square kilometers and stretches over four thousand kilometers. The region possesses immense value in hydropower, shipping, irrigation, and other fields. Therefore, comprehensive management of the Paraná River will aid the shared economic development of southern South America."
Clearly, the Paraná River Freer referred to here was the Paraná River in its broad sense, including the Río de la Plata and the Uruguay River.
Strictly speaking, however, the Río de la Plata, the Uruguay River, and the Paraná River were three independent rivers rather than one. Indeed, whether the Río de la Plata could even be considered a river remained highly contentious.
If the Río de la Plata were defined as a bay and thus part of the Atlantic Ocean, then the Paraná River and Uruguay River would be considered to flow directly into the Atlantic, naturally making them independent rivers.
But if it were regarded as a river, then the Río de la Plata would be the final river into which the Paraná River and Uruguay River converged. The three shared a single outlet to the sea and could be treated as one whole.
In order to maximize its interests, East Africa chose