The wars of the French Revolution and Napoleon obliterated century-old boundaries. In the tedious reformation of European borders, nations quarreled so violently at times—such as over Poland and Saxony—that it seemed as if new wars would immediately engulf Europe. This study explores a major Iberian storm center, which existed on the eastern Portuguese border at Olivenza. Repercussions of this conflict between Spain and Portugal extended from Moscow to Montevideo—and resulted in the formation of a new nation, Uruguay.