I think for most disasters there is no need for a military presence, other than in exceptional cases. For me, the exceptional ones since Hurricane Mitch would be the tsunami--where DART came in too late--the Pakistan earthquake, and Haiti. The rest can be handled by local governments, United Nations, humanitarian organizations, and NGOs.
We should be having less and less engagement in those repetitive ones. Mozambique has floods every year. There is no need, even, for us. We should be training local organizations to do so.
In terms of conflict, it's hard--