Opinion: From the Baltic to the Caspian Seas, land unites again

 For centuries, the rule of thumb in trade was that land divides, water unites. It took years and gradually months to follow an overland trading route from Europe to China, as opposed to months and eventually weeks by boat. But speed-trains are changing the global logistics map. These speed train connections are the “hardware” of the overland Silk Path road project that connects Europe to China.