It was one of the many effects of World War II.
Explanation:
Pakistan and India used to be combined and called India. In 1858 England colonized India and it remained a colony until 1947. When World War II ended England was devastated by the impacts of the war. Cities had been destroyed, there were shortages of goods and labor to rebuild the country, and the war was very costly for them. They decided to decolonize because parts of their empire were to costly for them, and because the did't want to oppress other nations. Though because of the strong controversy over religion in India, that decided to divide the country in to Pakistan and India. Still to this day the state religion of Pakistan is Islam, and India is still a secular country.
Many Americans opposed the war on moral grounds, appalled by the devastation and violence of the war. Others claimed the conflict was a war against Vietnamese independence, or an intervention in a foreign civil war; others opposed it because they felt it lacked clear objectives and appeared to be unwinnable.
Answer: No one because they are a poor place because of them being slaves to other people. Or probably the people that make them slaves benefit from them.
Because of the Shogun period, the emperors became weaker because shoguns held power, while their regents gained more power as they worked with shoguns. The nobles got more land like in most feudal societies which resulted in more power while the peasants started paying more taxes because of the implemented system.