Reapers' War the Arauco War being a lengthy and costly conflict the Spanish crown ordered its authorities in Chile to sign a peace agreement with the Mapuche in order to concentrate the empire's resources in fighting the Catalans. This way the Mapuche obtained a peace treaty and a recognition on behalf of the crown in a case unique for any indigenous group in the Americas. The conflict extended beyond the Peace of Westphalia, which concluded the Thirty Years' War in 1648 but remained part of the Franco-Spanish War (1635-1659) with the confrontation between two sovereigns and two Generalitats, one based in Barcelona,
Treaty of Mutual Cooperation and Security Between the United States and Japan To support that requirement, it provided for the continued presence of US military bases in Japan. The treaty also included general provisions on the further development of international cooperation and on improved future economic cooperation. The treaty has lasted longer than any other alliance between two great powers since the 1648 Peace of Westphalia. The treaty had a minimum term of 10 years. However, it provided that it would remain in force permanently unless one party gives one year's notice that it wishes to terminate it. The earlier Security Treaty of 1951 provided the initial basis for the Japan's security