The effects of the completion of the gas pipeline Nord Stream 2 (NS2) from St. Petersburg to Germany through the Baltic Sea will be numerous. The most important of these will involve national security, energy security, geopolitics, European Union (EU) energy policy, and governance, while the gas supply will hardly be impacted and the costs are already sunk—the only question is who will benefit from transit revenues. Numerous countries would be impacted, notably Belarus, Germany, Poland, Russia, and Ukraine, but also Eastern Europe as a whole, the European Union, and the United States. A controversial aspect is the application of US sanctions against subjects in allied countries.

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