What are supportive agencies & rescue teams to save lives from volcano eruption?

Here in the U.S., we have the American Rescue Team International that was established in 1985. It worked most of the major disasters worldwide in the last 10 years. Volunteers, nonprofit, non-political, and non-governmental. Best known is the American Red Cross. There is also the Federal Emergency Management Agency (FEMA), the federal agency responsible for responding to floods, hurricanes, earthquakes, volcanoes, and other natural disasters.