UPS, despite its decades of delivery experience, is a latecomer to the drone delivery game. Drone startup Flirtey demonstrated a ship-to-shore drone delivery of medical supplies off the coast of New Jersey earlier this summer, and drone delivery company Zipline declared its intent to delivery needed blood to rural populations in Washington State's San Juan islands. And it's not just startups that are already doing delivery. Amazon's drone program is perhaps the most famous, but Europe's own DHL delivery giant experimented with drones in difficult mountain terrain. Chinese online retailer JD.com is also exploring drone delivery in marshy and channel-crossed provinces, where flying drones can fly easily over the car-impassible waterways.