|My hero wields one of these made of steel|
To be fair, because this is an alternate-earth tale, the whole point is showcasing how different nations developed. The two best ways to do that are to write a globe hopping adventure and to include people from lots of different countries. My novel hits three tropic islands in two different oceans and the hero touches down in Asia, Central America, and New York City. That's a whole lot of mileage. The climax of the adventure also occurs in the alt-earth's version of the United Nations, which provides an excuse to mention every nation in a way that is completely natural and unobtrusive.
These things don't need to feel forced. It actually makes for a better story when they happen organically.