Explain the concept of balance of power. What are the various techniques of maintaining balance of power? (UPSC 2020, 20 Marks, )

शक्ति संतुलन की अवधारणा को स्पष्ट कीजिए। शक्ति संतुलन बनाए रखने की विभिन्न तकनीकें क्या हैं?

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