In March 1999, CARE International in Cambodia received funding from USAID, FOCUS on Young Adults, and CARE International to implement Participatory Learning for Action (PLA)1 research through the Border Areas HIV/AIDS Prevention Project (BAHAP). BAHAP is a regional project, implemented by CARE International, to provide STIs/HIV/AIDS messages and services to persons on the border areas of Cambodia, Thailand, Laos, and Vietnam. These areas have been identified as “high risk” due to unsafe sexual encounters that form as a result of social vulnerability and patterns of sexual exchange for money, shelter or other means of survival. These risks are especially pronounced among young people, many of whom have limited access to resources, limited power, and responsibilities to support their families. The aim of the project is to promote behavioral and contextual change in an effort to make these areas safer environments.