Frequently, firearm fatalities occur in the context of domestic violence, suicide, or acts committed under the influence of alcohol and/or other drugs. Because gun violence is related to these other social problems, it must be considered more than just a criminal justice issue. It is also a public health issue that should be addressed by domestic violence prevention advocates, suicide prevention groups, and substance abuse prevention coalitions on a regular basis. This Action Kit is designed to encourage those who are working to prevent domestic violence, suicide, and alcohol and other drug abuse to become well-educated about the links between each of these problems and gun violence; integrate this knowledge into work and activities with peers and clients; and lend support to local prevention activities, such as those that support tougher gun policies or increase public awareness. Examples are offered of short-term and long-term strategies that can be implemented in communities to support local efforts to stem the tide of gun violence. A directory of organizations is included. (GCP)