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Defensive War Theory

Defensive War Theory justifies going to war only when necessary to protect a nation from imminent harm or aggression. It emphasizes that military action should aim to defend the country’s sovereignty and safety, not to conquest or punish others. The theory upholds principles like proportionality—responding with appropriate force—and necessity—using force only when there are no peaceful options. Essentially, it advocates for war as a last resort, focused solely on self-defense to restore peace and security, rather than for territorial expansion or other aggressive motives.