Answer:
The primary issues were the lack of industry, as well as government by minority (especially in African nations.) For example, in South Africa, most land was controlled by the white minority, and the government was run by the same people. They also lacked the economic capabilities to be a successful democracy. Newly defined nations are also subject to violent overthrows, as the government is not well established and leadership is therefore not mature and experienced. Oftentimes, we see these situations in places like Sudan and Algeria, both of which have experienced military coups.