Rock the 2026 Early Cold War & Civil Rights Challenge – Dive Into History's Turning Points!

After World War II, nations sought a global framework to prevent conflict and encourage cooperation across countries. The United Nations was established in 1945 to promote international peace, security, and cooperation in political, economic, and humanitarian areas. It created a forum for resolving disputes, coordinating aid, and protecting human rights, with structures like the Security Council to handle threats to peace. The other groups have different origins or functions: the League of Nations came after World War I but failed to prevent aggression in the 1930s; NATO is a Cold War–era military alliance focused on collective defense; and the International Criminal Court, created later, focuses on prosecuting individuals for war crimes rather than serving broadly as a peace-and-security organization. So the United Nations best fits the description.