Although they will probably be junked soon, Russia still has 12 steam locomotives from the Soviet Union days. In case of a nuclear war, the country took precautions against the possibility of having no fuel for transportation.
The trains, having sat in a deserted yard near the city of Roslavl, are in terrible condition, with the non-rotten parts already having been scavenged by people.
If you want to read about Canada’s maple syrup reserve, China’s pork reserve, and our helium reserve, click the link below. It’s a good read.