From Guns.com:

Switzerland and the European Union are at odds over efforts by the EU to curb the neutral country’s treasured gun culture and citizen-soldier tradition.

While not an EU-member, Switzerland has entered into a series of treaties over the years to adopt various laws in conjunction with the organization in order to trade freely with in the European Single Market. At the same time, the Alpine country, which has been more or less neutral since splitting from the Holy Roman Empire in 1499, has maintained a tradition of national service in their military while keeping some of the loosest gun laws in Europe if not the world.