League of the Three Emperors

The League of the Three Emperors (Portuguese: Liga dos Três Imperadores; Spanish: Liga de los Tres Emperadores; Japanese: Sankō dōmei) is a political alliance inaugurated in 2003 between the countries of Japan, Mexico, and Brazil, the world's currently remaining monarchies whose rulers are either styled as emperors or empresses.

Inaugurated in 2003, the alliance is directly named after its predecessor which took place approximately 130 years ago between the empires of Germany, Austria-Hungary, and Russia. However, unlike the original version, the newer version is neither an offensive or defensive alliance but mostly an informal economic alliance between the three countries of Japan, Brazil, and Mexico who, aside from their shared feature in having an emperor on the throne, are all members of the G20. Of the three, Japan's monarchy is the oldest, having reigned uninterrupted since the 6th century. Meanwhile, Mexico's monarchy was established in 1821 following the Mesican War of Independence from Spain while Brazil's monarchy was first established in 1822 following the independence of Brazil but was subsequently abolished in 1889 before later being restored by a popular referendum in 1993.