What are 2 topics that became the focus of intense political debate after the end of World War 2?

After World War II, two topics that sparked intense political debate were the establishment of the United Nations and the issue of decolonization. The UN aimed to promote international cooperation and prevent future conflicts, but debates arose over its effectiveness and the balance of power among member nations. Additionally, the decolonization movement challenged imperial powers as countries in Asia, Africa, and the Caribbean sought independence, leading to discussions about self-determination, national sovereignty, and the responsibilities of former colonial powers.