The Peace Border (Portuguese: Fronteira da Paz; Spanish: Frontera de la Paz) is a portion of the Brazilian-Uruguayan land border, that includes the twin cities of Rivera (Uruguay) and Santana do Livramento (Brazil). The border is so named because of the peaceful cultural interaction of the both nationalities leading to the integration of the two communities. The border is over land, united by a common square, with an imaginary line running through streets, avenues and some marked spots.
A symbol of this fraternal coexistence is the Praça/Plaza Internacional (International Square), the only binational square in the world, sovereignly shared between the two nations in equal parts, inaugurated on February 26th, 1943, being the heads of state of both Brazil and Uruguay respectively Getúlio Vargas and Alfredo Baldomir, in times where the world was going through the belligerent times of the World War II (1939–1945).[1]