...Within a few weeks, Amazon.com will begin competing directly with longtime partners United Parcel Service, FedEx and DHL.
But not in the United States. At least, not yet...

...Amazon wants to build out its own U.S. cargo operations to avoid delays from carriers such as UPS and FedEx, which have, at times, struggled to keep up with the rapid growth of e-commerce. This past holiday season, FedEx failed to deliver some Christmas packages on time, blaming inclement weather and a surge in last-minute holiday shopping. Two years earlier, it was UPS that struggled with the crush of holiday shipping...


Amazon?s delivery ambitions take on industry giants | The Seattle Times