How can people starve in a fertile land with two good rainy seasons?

The need for emergency feeding in Africa has been an on-going crisis for many decades, yet Africa has the most fertile land available in any continent in the world. Why should a land which is so fertile be facing hunger and starvation? With lush vegetation and endless wide sweeping savannahs, why does Sudan have 3,000,000 hungry and displaced people within the country, and another 1,000,000 more people returning to a land with a food crisis?

There is a Great Need