text: Yes, either national can apply to the US Embassy in their country.\n\nEach embassy has the right to decide if a person meets the requirements of obtaining a "tourist visa", and some countries are easier than others.\n\nFor Ukraine (from personal experience) it is exceptionally difficult to obtain a tourist visa. A single, young woman has almost no chance of a tourist visa, even if she leaves a child behind, owns property, and has a good job. Especially if she speaks good English (because she's employable, and our standard of living is much better compared to theirs).\n\nI do not know the specifics of Moldova, other than it is "difficult".