In June 1948, Soviet forces blockaded rail, road, and water access to Allied-controlled areas of Berlin. Within two days the US and UK air forces had begun a supply chain from bases in in western Germany, maintaining it until May the following year. In all, the Berlin Airlift delivered 2.4 million tons of food and supplies under hostile conditions to about 2.5 million people, including all their food, gasoline, and coal for heating and electricity generating.
Yet Puerto Rico, a U.S. territory with 3.4 million souls, two weeks after being body-slammed by the fiercest hurricane to hit the island in 90 years, is receiving little aid. This is apparently primarily because of a bottleneck at the island's sole container port, San Juan. There is disagreement over the causes of that bottleneck, but fact is it can be bypassed.