Right of conquest

The right of conquest is the right of a conqueror to territory taken by force of arms. It was traditionally a principle of international law that has gradually given way in modern times until its proscription after World War II when the crime of war of aggression was first codified in the Nuremberg Principles and then finally, in 1974, as a United Nations resolution 3314.

Proponents state that this right acknowledges the status quo, and that denial of the right is meaningless unless one is able and willing to use military force to deny it. Further, the right was traditionally accepted because the conquering force, being by definition stronger than any lawfully entitled governance which it may have replaced, was therefore more likely to secure peace and stability for the people, and so the Right of Conquest legitimises the conqueror towards that end.

The completion of colonial conquest of much of the world (see the Scramble for Africa), the devastation of World War I and World War II, and the alignment of both the United States and the Soviet Union with the principle of self-determination led to the abandonment of the right of conquest in formal international law. The 1928 Kellogg–Briand Pact, the post-1945 Nuremberg Trials, the UN Charter, and the UN role in decolonization saw the progressive dismantling of this principle. Simultaneously, the UN Charter's guarantee of the "territorial integrity" of member states effectively froze out claims against prior conquests from this process.

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