Sub-Saharan
Africa is a region that lies mainly to the south of the Sahara desert. This
includes most of the African countries that are located south of Sahara. Botswana
is the sub-Saharan country that is mostly covered by the Kalahari Desert. There
are other countries that have Kalahari Desert included in their boundaries as
well, but the maximum part of Botswana is covered by the Kalahari Desert. So
the obvious choice among the sub-Saharan African country that has the major
part of Kalahari Desert in it is Botswana.