HRH’s International Sustainability Unit was formed in 2010 to address critical challenges to development and the environment. The I.S.U. builds on the success of The Prince’s Rainforests Project, established to find a solution to tropical deforestation, which resulted in international commitments of US$5 billion for immediate financing. The I.S.U. has since implemented programmes focusing on natural capital and resilience, with strands covering food, water and energy security; resource scarcity and depletion as potential conflict multipliers; preventing and reversing deforestation; responsible agricultural investment; and the Illegal Trade in Wildlife.