I'm the only stating that because they have done business with everyone of those groups you listed abroad and within these group's territory with little to no consequences.
nigerian oc usually move little drug, in europe most of coke is imported by italian mafia, hashish by moroccans and italian mafia, heroin by albanians and turks/kurds, weed is producted in italy, albania and netherlands, meth is produced in netherlands... nigerian are little players over there, the same in the united states that is dominated by mexican cartels
