John Williamson is the senior technical advisor for the Displaced Children and Orphans Fund (DCOF) of the U.S. Agency for International Development (USAID), supporting programming for children affected by armed conflict, street children, and children affected by AIDS. Since 1994, he has written or contributed to publications concerning children orphaned or otherwise made vulnerable by HIV/AIDS, including the Children on the Brink series.
![Cover of A Treatise of Military Finance [By J. Williamson].](https://images.bookhype.com/covers/20/4a/915786f5-45e3-47b2-aae0-f74491d5a402/9781130583663-90250c97b5ec1cfed45676-medium-cropped.jpg)
