Treaty of Zürich Treaty of Zürich The Treaty of Zurich was signed by the Austrian Empire, the French Empire, and the Kingdom of Sardinia on November 10, 1859. The agreement was a reaffirmation of the terms of the preliminary peace of Villafranca, which brought the Austro-Sardinian War to an official close. The treaty actually consisted of three separate treaties - a treaty between France and Austria, which reaffirmed the terms of the preliminary peace, re-established peace between the two emperors, and ceded Lombardy to France. A second treaty, between France and Sardinia, saw France cede Lombardy to Sardinia. The third treaty, signed by
Nine-Power Treaty shown to be completely ineffective. During the Washington Naval Conference of 1921–1922, the United States government again raised the Open Door Policy as an international issue, and had all of the attendees (United States, Republic of China, Imperial Japan, France, Great Britain, Italy, Belgium, Netherlands, and Portugal) sign the Nine-Power Treaty which intended to make the Open Door Policy international law. The Nine-Power Treaty, concurrent with the Shangtung Treaty of the Washington Naval Conference, effectively prompted Japan to return territorial control of Shandong province, of the Shandong Problem, to the Republic of China. The Nine-Power Treaty was one of several