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.
A cofactor is a non-protein molecule that carries out chemical reactions that cannot be performed by the standard 20 amino acids. Cofactors can be either inorganic molecules (metals) or small organic molecules (coenzymes).