I have a friend out there right now helping fly people to safety, and he's in a civilian helicopter. (Its used as an instruction helicopter, so at most holds 2-3 people besides the pilot.)
He's already been shot at (they missed) and had people constantly cussing him out because they claim he's only taking skinny people. (helicopters have weight limits, not personnel limits...if you exceed the weight limit, he can't fly)
As for foreign aid:
http://www.cnn.com/2005/WEATHER/09/02/katrina.world/index.html
The highlights are:
-Sympathy from Queen Elizabeth and promises of aid if needed/requested
-Prayers from the vatican
-$10Million to the Red Cross from Australia as well as a team of emergency management specialists.
-$200k cash and about $300k in supplies from Japan to the Red Cross
-Offers of aid from the EU
-60Million barrels of "product" made available by the international energy agency
-NATO is waiting for requests of what is needed
-Germany offered aid or money but was denied
-French president sent a letter to "Dear George" *snork*
-$25,000 from Sri Lanka to Red Cross (despite trying to recover from its own disaster)