When did Switzerland become a neutral country?

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When did Switzerland become a neutral country? Answer: 1815

Switzerland's neutrality evolved over time, with roots in its 1515 defeat at Marignano ending expansionism, but it was formally recognized internationally at the Congress of Vienna in 1815, solidifying its perpetual neutrality as part of the European peace settlement. This 1815 recognition, following the Napoleonic Wars, established Switzerland's status as a neutral, independent state, a policy later defined by international law in 1907 and maintained through both World Wars.

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This question is part of 🌍 Current Affairs within the broader 🌐 Current Affairs & GK subject and appears in the PPSC Punjab Public Service Commission preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.