In the First Aquitainian War, England and France had fought for the land of Aquitaine, without coming to a result. England still wished for enlarging its part of France, and France wanted to own all of it. In 1414, England under new king Richard III made alliances with Castille and the Netherlands, attacked France again. The Second Aquitainian War had begun. In 1424, the Cortes, the Castillian estates, protested the high costs and low results of the war. King Pedro III was sorry about it, but had to leave the war too. He had better things to do, in fact: Interfering in the Portuguese Civil War.