Final answer:
Between 1945-1975, Sub-Saharan Africa, South Asia, and Southeast Asia became independent. Post-1975, new nations emerged from Soviet Union's dissolution and decolonization in the Caribbean and Pacific. Decolonization faced many political and economic challenges.
Step-by-step explanation:
1945 to 1975:
Africa: The decolonization of Africa was a significant historical process that occurred in the mid-20th century. Many African nations gained independence from European colonial powers during this period. Notable examples include Ghana (1957), Kenya (1963), Algeria (1962), and many others.
Asia: Several Asian countries gained independence in the post-World War II era. India gained independence from British rule in 1947, followed by other nations such as Indonesia, Myanmar, Vietnam, and the Philippines.
Middle East: The post-World War II period also witnessed the independence of several Middle Eastern nations. Israel was established in 1948, and other countries in the region, such as Jordan and Iraq, gained independence from British and French mandates.
1975 to 2015:
Southeast Asia: In the 1970s and 1980s, several Southeast Asian nations gained independence or underwent significant political changes.
Central and Eastern Europe: The period from 1975 to 2015 saw the dissolution of the Soviet Union and the end of the Cold War, leading to the independence of multiple countries in Central and Eastern Europe.
Former Yugoslav Republics: The breakup of Yugoslavia in the 1990s resulted in the independence of several countries in the Balkan region.