Switzerland is holding a pivotal referendum to decide on implementing a "brake" on immigration and establishing population limits. The proposed measures aim to restrict the flow of migrants into the country to manage population growth. However, these policies could directly conflict with existing agreements between Switzerland and the European Union. The EU has expressed concern that such restrictions may undermine the principle of free movement of people. If passed, the vote could jeopardize the bilateral treaties that govern economic and political relations. Consequently, the outcome represents a significant milestone for Swiss domestic policy and its international standing. The result will determine whether Switzerland prioritizes national population control over its strategic partnership with the EU.