Brazil
What two South American countries are located completely within the continent's interior is an easy question to answer, because Bolivia and Paraguay are the only completely landlocked countries in all of the Americas.
The United Kingdom and Russia were the countries with the two largest empires in the world, meaning the most claimed land. However, Spain and the United Kingdom could be tied because the two countries both claimed all of the Americas (of course these claims were unrealistic and not recognized).
Brazil and Argentina.
There are two continents in the Americas: North America and South America.
Spain and Portugal held the largest territories in the Americas during the Age of Exploration.
The two largest countries in Africa by population are Nigeria and Ethiopia. By area, the two largest are Algeria and the Democratic Republic of the Congo
The United States and Canada are the two largest countries in North America.
The continent with the largest border between two countries is Africa. The border between Sudan and South Sudan is the longest international border in Africa, stretching approximately 1,937 km (1,204 miles).
The two largest countries in Africa by population are Nigeria and Ethiopia. By area, the two largest are Algeria and the Democratic Republic of the Congo
The two largest deserts in South America are the Patagonian and Atacama Deserts.
Brazil borders all but two of the countries in South America.