With the increase in the number of jihadist attacks in the European cities, together with the rise in illegal migrant and refugee crisis, there is debate on whether there is an association between the two issues. We have to remember, in Europe, terrorist organizations have worked with and sometimes emulated organized crime syndicates through involvement in the trafficking of drugs, people, weapons, and antiquities. In Southeast Asia, conflict areas provide the backdrop for cross-border drug trafficking and kidnap-for-ransom activities, while extremist groups both commit crimes for profit and target criminals for recruitment.