Since its independence in 1956, Sudan has been bedeviled by a succession of civil wars and political instability. The Darfur conflict should be seen as part of these larger, ongoing series of Sudanese crises, with one conflict spilling from one part of the country to another.
the general term is cofactor, but more specifically, if the cofactor is an organic molecule, it is called a coenzyme.
Enzyme cofactors. What we have said so far is a major over-simplification for most enzymes. Most enzymes aren't in fact just pure protein molecules. Other non-protein bits and pieces are needed to make them work. These are known as cofactors. In the absence of the right cofactor, the enzyme doesn't work.