Switzerland, officially the Swiss Confederation, is a landlocked country located at the intersection of Central, Western, and Southern Europe. It is bordered by Germany to the north, France to the west, Austria and Liechtenstein to the east, and Italy to the south. Switzerland is geographically divided among the Swiss Alps, the Swiss Plateau, and the Jura Mountains; the Alps cover most of the country's territory, whereas the majority of its 9 million people are concentrated on the plateau, which hosts many of the largest cities and economic centres, including Zurich, Geneva, Basel, Bern, Lausanne, Winterthur, and Lucerne. Switzerland is a federal republic composed of 26 cantons, with Bern serving as the federal city and the seat of the national government. The country encompasses four principal linguistic and cultural regions—German, French, Italian, and Romansh—reflecting a long-standing tradition of multilingualism and cultural pluralism. Swiss national identity nonetheless remains fairly cohesive, rooted in a shared historical background, common values such as federalism and direct democracy, and Alpine symbolism. Swiss nationhood transcends language, ethnicity, and religion, leading to Switzerland being described as a Willensnation ("nation of volition") rather than a conventional nation state. The country originates from the Old Swiss Confederacy established in the Late Middle Ages as a defensive and commercial alliance; the Federal Charter of 1291 is considered the country's founding document. The confederation steadily expanded and consolidated despite external threats and internal political and religious strife. Swiss independence from the Holy Roman Empire was formally recognized in the Peace of Westphalia in 1648.