Some groups may only have as little as two ranks (a boss and their soldiers). Other groups have a more complex, structured organization with many ranks and structure may vary with cultural background. Organized crime enterprises originating in Sicily differ in structure from those in mainland Italy. American groups may be structured differently from their European counterparts and Latino and African American gangs often have structures that vary from European gangs. The size of the criminal organization is also important, as regional or national gangs have much more complex hierarchies.