This is the first in-depth study of Or Sor, the official paramilitary but multi-function organisation created in 1963 as a support-force for Thailand's military. Its focus was on civilian insurgency particularly at local and village level. Over the years Or Sor has played a significant part in the country's life including in maintaining road checkpoints and general security, controlling refugee movement and camps in the Thai/Myanmar borderlands, tracking drug traffickers, and dealing with localized unrest. Reform policies, financing and Or Sor's sometimes generally abysmal reputation are all discussed. Much light is shed on the shape and achievements of a distinctively Thai institution. With black-and-white photographs, glossary, sketch maps, bibliography and index.