First, academicians from the Clement J. Zablocki VA Medical Center (VAMC) are working with the Veterans of Foreign Wars (VFW) and other community groups to develop a community-academic partnership that follows the principles of community-based participatory research. This key activity is underway and will continue beyond the present period of funding. Second, the centerpiece of the present grant is a cluster randomized clinical trial (RCT) of the use of peer-led support groups to improve BP control in patients with hypertension. Fifty posts drawn from the VFW, American Legion, Vietnam Veterans Association, and National Association of Black Veterans will be randomly assigned to receive professionally delivered education regarding hypertension or to a peer support intervention. The third activity is an evaluation of the processes involved in delivering the peer support intervention that will allow for successful replication, or to provide insight into why the expected improvement in BP control did not occur.