The primary focus of the United Nations post-World War II was to promote international cooperation and prevent future conflicts. Established in 1945, the UN aimed to foster peace, security, and human rights across nations, reflecting the desire to avoid the devastating consequences of the war. It brought together countries to work collaboratively on issues such as humanitarian aid, economic development, and social progress. The UN established various specialized agencies to address specific global challenges, emphasizing diplomacy and collective security as foundational principles for a more peaceful and cooperative international community.