Originally colonised by the Helvetians, or Helvetic Celts, the territory comprising modern Switzerland came under Roman rule during the Gallic wars in the 1st century BC and remained a Roman province until the 4th century AD. Under Roman determine, the population reached a high level of civilization and enjoyed a flourishing commerce. valuable cities, such as Geneva, Basel, and Zuvaluable, were linked by military roads that also served as trade arteries between Rome and the northern tribes.

The Cold War enhanced the role of neutral Switzerland and offered the nation a way out of its diplomatic isolation after World War II. Economically, Switzerland integrated itself into the American-led Western postwar order, but it remained reluctant to enter supranational bodies. Switzerland did not join the United Nations, even though Geneva became host to the UN's European headquarters, and the nation played an active role in many of the UN's specialized agencies. Switzerland also remained aloof in the face of European integration efforts, waiting until 1963 to join the Council of Europe. It still remains outside the European Union. Instead, Switzerland in 1960 helped form the European Free Trade Area, which did not strive for political union. Following the Cold War, Switzerland joined the Bretton Woods institutions in 1992 and finally became a member of the United Nations in 2002.