In this Saturday, July 13, 2019 photo, cadets board the first train using new equipment from China, in Havana, Cuba. The first train using new equipment from China pulled out of Havana Saturday, hauling passengers on the start of a 915-kilometer (516-mile) journey to the eastern end of the island as the government tries to overhaul the country's aging and decrepit rail system. (AP Photo/Ramon Espinosa)