Successful response to volcanic unrest takes many forms, relying on a combination of geophysical data, fieldwork, satellite observations, historical analysis, and effective communications. At the request of governments of affected countries, VDAP helps foreign colleagues monitor volcanic activity, assess hazards, generate eruption forecasts, and develop early warning capabilities, which help get people out of harm's way. Experienced teams of VDAP scientists can rapidly respond to developing crises worldwide. VDAP teams collaborate in the background, providing support to international partners who are the responsible parties for hazard communication.