In a joint video appeal with his son William, Prince Charles said that the illegal wildlife trade now poses "a grave threat" to both endangered species and economic and political stability.
I have said before that we must treat the illegal wildlife trade as a battle, because it is precisely that.
The rising and apparently insatiable demand, much of it from Asia, has provided an economic incentive for trafficking to become increasingly criminalised and professional.
Organised bands of criminals are stealing and slaughtering elephants, rhinoceros and tigers, as well as large numbers of other species, in a way that has never been seen before, pushing many species to the brink of extinction.
Hong Kong is acting as the gateway for illegal ivory entering China - where the item is high in demand.
Prince Charles and Prince William joined launched a campaign to save endangered species like rhinos, tigers and elephants from poachers.