South America's second-largest country, a cultural powerhouse stretching from the tropics to Tierra del Fuego.

As Washington recalibrates its strategy toward the Western Hemisphere, one diplomat argues the realignment now taking shape across the Americas has a single, unmistakable author.

South America's largest nation, home to the Amazon and the world's fifth-largest population.

A megadiverse federation of 32 states, bridging North and Central America with the hemisphere's second-largest Spanish-speaking population.