Conflict and instability in countries of origin, economic inequalities and poverty, overpopulation and demographic dynamics, unemployment, lack of security and weak levels of democracy, natural disasters as push factors of migration, have triggered in recent years a sharp increase in mixed migratory flows.
Spopadi in nestabilnost v državah izvora, ekonomske neenakosti in revščina, prenaseljenost in demografska dinamika, brezposelnost, pomanjkanje varnosti in nizka raven demokracije ter naravne nesreče kot dejavniki, ki spodbujajo migracije, so v zadnjih letih sprožili močno povečanje mešanih migracijskih tokov.