History of French foreign relations of construction materials (especially concrete), tanks (because of lack of road access and difficulty in the jungle terrain), and air cover precluded an effective defense, culminating in a decisive French defeat at the Battle of Dien Bien Phu. At the international Geneva Conference on July 21, 1954 the new socialist French government and the Việt Minh made an agreement that was denounced by the government of Vietnam and by the United States, but which effectively gave the Communists control of North Vietnam above the 17th parallel. South Vietnam, with heavy American support. continued under Emperor Bảo Đại. In 1955 Bảo
Spain in the 17th century all contributed to the decline of the Habsburg rule of Spain. The end of the 17th century also brought the end of Habsburg rule. The 18th century began with the War of the Spanish Succession, which concluded in the establishment of the Bourbon dynasty in Spain. In 1469, Ferdinand II of Aragon and Isabella I of Castile united the Crowns of Aragon and Castile into one, creating the early modern Spanish state. Although this ensured future Spanish rulers would rule over both Aragon and Castile, both regions had their own administration and legal systems. In addition, Aragon itself was divided