What is an attempt to bring order to international relations by all nations joining together to guarantee each other's territorial integrity and independence against external aggression?

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Collective security is the concept of all nations joining together to guarantee each other's territorial integrity and independence against external aggression. This idea was developed after World War I and was included in the United Nations Charter as an important principle for maintaining international peace and security. Under collective security, nations pledge to act together to prevent and respond to threats to international peace, and commit to using peaceful means to resolve disputes.

What Is an Attempt to Bring Order to International Relations