Despite otherwise having little in common save for lots of mountains, Switzerland and Afghanistan have a shared reputation in popular culture as being impregnable, untameable countries. Which led me to go: What if circumstances flip-flopped their history and outcomes?
In Central Asia, a Dari-speaking nation arises in the mountains of what we’d call northern and central Afghanistan. Close to many major trade routes, it takes advantage of its geographic security and reputation for studious neutrality to develop a thriving financial sector. This and the wealth generated by it enable this to develop a reputation for exporting luxury, advanced artisanal goods as well. Meanwhile in Europe, an artificial clump of different ethnicities in the Alps becomes a weak, tumultuous, war-torn “western Yugoslavia”.
Yes, it’s a very soft alternate history. But it’s the kind of thing that alternate history was made for, and it’d work great as a story’s setting.