The Federal League (Spanish: Liga Federal), also known as the League of Free Peoples (Liga de los Pueblos Libres), was an alliance of provinces in what is now Uruguay, Argentina and Brazil that aimed to establish a confederal organization for the state that was emerging from the May Revolution in the war of independence against the Spanish Empire. Although the country was intended to extend throughout modern-day Argentina, its leadership was based on Purificación and the Eastern Bank of the Uruguay river. Therefore, it is sometimes considered a predecessor state of modern Uruguay.