Final answer:
The United Nations is an international organization founded in 1945 after World War II with a mission to maintain international peace and security. It promotes social progress, better living standards, and human rights.
Step-by-step explanation:
The United Nations is an international organization founded in 1945 after World War II. Its mission is to maintain international peace and security, develop friendly relations among nations, and promote social progress, better living standards, and human rights. The UN accomplishes this through various means such as negotiations, peacekeeping missions, and humanitarian aid.
Foundation in 1945: The United Nations was founded in 1945, following the conclusion of World War II. The U.N. was established to promote international cooperation and prevent future conflicts.
Mission to Maintain World Peace: The primary mission of the United Nations is to maintain world peace. This involves various diplomatic, humanitarian, and peacekeeping efforts to address conflicts, promote human rights, and facilitate international cooperation.