In northern South Africa, former soldiers are fighting both the illegal wildlife trade and the twin scourges of unemployment and PTSD. The job of [Ryan] Tate, a 32-year-old former US Marine, and the group of US military veterans he has assembled in a remote private reserve in the far north of South Africa is simple: keep the rhinos and the rest of the game in the bush around their remote base alive. The men are not mercenaries, or park rangers they work for Tates Veterans Empowered To Protect African Wildlife (Vetpaw), a US-based nonprofit organisation funded by private donations. All have seen combat, often with elite military units, in Iraq, Afghanistan and elsewhere. The scale of the challenge of protecting South Africas rhinos is clear to everyone, with a rise in poaching in recent years threatening to reverse conservation gains made over decades. Patchy law enforcement, corruption and poverty combine to exacerbate the problem. Tate founded Vetpaw after seeing a documentary about poaching and the deaths of park rangers in Africa. His team now work on a dozen private game reserves covering a total of around 200,000 hectares in Limpopo, the countrys northernmost province. But if one aim of Vetpaw is to counter poaching, another is to help combat veterans in the US, where former servicemen suffer high levels of unemployment and mental illness. Everyone gets PTSD when they come back from war I saw a need in two places and just put them together, says Tate.