What if the U.S. had recruiters for wildlife conservation to the same extent as military recruiters? Criminals get killed by cops and soldiers. Poachers are criminals too. There is poaching in North America as well as Latin America.
I think of it more as a social service. You don’t want to be a cop anymore? Go kill poachers. You were discharged for an injury? Do the same. I still don’t know if it would be a non-profit, or donations-based, or what. Maybe military could do tours there.