I need help for my map for my strategy game

So i got a world provinicial map and the thing i want is that, the map is a png and if i import it in Blender, its just a single plane and i want to cut each province but faster so i can save time.

Any ideas for that ?

m so you want to split up the png?

If so you can do this in your image editing software of choice. (dont have one? use photopea)

Put the image in the software and duplicate it as many times as there are areas (+1 for backup)

Use the lasso tool to select everything but a specific regen and delete it. Do the same for all the areas so that they are the only thing on their respective layer.

Save each layer separately( crop and clean up if desired) and you now have separate pngs!

If this is not what you are asking… then ummmm… could you clarify your question?