i was just using logic.
something the UN occasionally lacks. i rarely believe what the UN says, taking their stuff with a grain of salt. their definitions and boundaries tend to be political rather than logical or factual.
the darker green are the UN defined, the lighter green are designated geographical.
this is what i was referring to:
arbitrary modern political boundaries rarely reflect the ethnographical ones.
anyway, feel free to use your own definitions if it helps you visualize things.