Today when disaster happens, the primary organization providing support and mitigation tends to be government departments.
Non-profit charities also play a very significant role. To a small extent private companies also play a part, particularly in
producing and routing supplies. Most of this activity is reactive after the fact.
There are many types of disasters from natural disasters to human economic ones. The worst damage is the unnecessary lives lost, sometimes in the millions. And there are types of damage jobs lost, health loss, housing loss, earnings loss, poverty, and many others.