Later when these nations were granted independence, their populations grew and their economies crashed. They did not have effective governments as they used to and could not equitably distribute resources to the large populations.
Because of the struggles of independence, divisions between different classes and religions resurfaced and caused conflicts within certain regions. Sometimes, the boundaries that were drawn by the Europeans did not reflect the religious or ethnic differences within the region, such as in Rwanda and Kashmir.
When the British granted India independence they created the nations of Pakistan and India to accommodate for the religious differences (Pakistan - predominantly Muslim, India - predominantly Hindu). However, the British did not do this effectively because conflict developed on the West Pakistan/India border and in Kashmir.
Both Pakistan and India occupy and control significant portions of Kashmir and still cannot agree on Kashmir’s official political standing. The original partition by the British allowed Kashmir to chose which nation they would like to be a part of. Kashmir’s leader chose to become a part of India, but Pakistan did not accept his decision.
Even more conflict occurred in Rwanda because of European boundary drawing. The Rwanda population is made up of 85% Hutus and 15% Tutsis. Beginning in 1918, Rwanda came under the control of Belgium. The Belgians preferred the Tutsi minority to the Hutu majority. Many years of oppression by the Tutsis led to serious resentment between the two groups.
In April, 1994, a plane carrying the president of Rwanda and of Burundi was destroyed. The Hutus blamed the Tutsis for the death of the presidents and began mass murdering Tutsis. An estimated 800,000 Tutsis were killed within the period of 100 days.