Hurricane Sandy aftermath: What country will offer assistance first?

Hurricane Sandy left a huge path of destruction.  Estimating the damages will be almost impossible, since the effects of the hurricane will be felt for years to come.  Stock market, tourism, casinos, tax revenues, jobs, insurance costs, infrastructure, and human factor.  First careful estimates are in already.  The Huffington Post reports:

As a wide swath of the eastern seaboard begins to recover from what's estimated to be at least $20 billion in hurricane-related damages, the help is pouring in. Federal recovery dollars are being funneled to state agencies, nonprofits are accepting donations, first responders are caring for the injured and neighbors are helping neighbors.

One burning question comes to mind: which countries will jump in first to offer any form of help to the United States?

United States provides tons of assistance after every major disaster all over the world.  We all know that.  This is a payback time.  Who's first?  Going once, going twice...