The area of South America known as the “Lithium Triangle” is both a catchy moniker and a geopolitical oversimplification. The triangle comprises Bolivia, Argentina, and Chile, three nations that share a vast expanse of salt flats housing 75% of the world's lithium. Although the U.S. still gets a majority of its lithium domestically – or, in Tesla’s case, from Australia – South American lithium will play a pivotal role in the global transition to electric vehicles. As a result, the United States is eager to influence the region.