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Modern sanctions can crater a currency and an industry within weeks — without a single shot fired. The 2022 Russia case showed sanctions are now functionally a category of warfare, not just a diplomatic gesture.
SWIFT exclusion, central-bank reserves freeze, technology-export controls, and secondary sanctions on third-country buyers — combined, these tools dropped the Russian ruble 30% in a week, locked $300B in foreign reserves, and severed semiconductor supply within a month. Whether sanctions actually achieve their stated political goals is contested; that they impose massive economic damage is not.

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