In this March 23, 2015 photo, a man looks at a tank being transported on a paused cargo train, as he travels by train through the province of Holguin, Cuba. The train system suffered along with much of the country's infrastructure when the Soviet Union's collapse cut Cuba off from the subsidies that Moscow had pumped into its economy. Currently, a longstanding U.S. trade embargo makes it hard to get parts. (Photo by Ramon Espinosa/AP Photo)
