A prosperous island kingdom and major South American power enters the modern world.
Marestria is a small island kingdom near Argentina and Uruguay, slightly larger than Estonia and home to about 28 million people. Its capital is Rivoria. The country has the second-largest economy in South America after Brazil and maintains a diversified advanced economy spanning finance, technology, maritime industries, energy, manufacturing, agriculture, and tourism. The monarchy is constitutional and parliamentary government holds executive authority. Marestria maintains close regional relations while pursuing an independent South Atlantic policy.
In January 2026, Marestria is a stable constitutional monarchy in the South Atlantic, with a highly developed economy, very high human development, and the most powerful military in South America. Prime Minister Henrique Alvarenga is exceptionally popular while King Moacir and the royal family remain important national symbols.
Government actions require coordination between the elected government and constitutional institutions. Major military actions depend on the Marestrian chain of command and available maritime, air, and land capabilities. Regional diplomatic actions should account for Marestria's close relationships with Argentina, Uruguay, and Brazil and its strategic position in the South Atlantic.