To be effective however, it requires those concerned with airpower to understand the functions and problems affecting relief organizations for only then can a sound strategy be developed that can help enhance efficiency in humanitarian relief operations. Environmental Factors Sub-Saharan Africa covers an area of more than 23 million square kilometers composed of rugged terrain, harsh climatical conditions, unreliable rainfall patterns, and limited sources of clean water. Of the rivers flowing in the region, only a few are permanent while most are seasonal. About 55 percent of Africa's population is found in sub-Saharan Africa of which over 75 percent live in the rural areas. Nearly all the people living in the rural area live in villages, and practice subsistent farming.
Communities usually group themselves according to their ethnicity.
Ethnic diversity also implies diverse cultures. Just as Western Civilizations have their own diverse cultures, so do the countries in the sub-Saharan Africa where cultural diversity is even more pronounced. The ethnic differences and therefore cultural diversity in some countries like Rwanda have been exploited to further drive the people of a particular country away from each other. Cultural differences have also been converted into a source of strength and pride in a rich cultural heritage as exemplified in Kenya by the rich mix of cultural dances on important national celebrations. Indeed, National celebrations are deemed incomplete without our proved cultural dancers and every ethnic community strives to display its unique culture to the wider Kenyan population.