Zhejiang = “Zhe River”. Just the name of the river. That character only refers to that river.

Jiangsu = “Yangzi and Suzhou”, in older Chinese, “Jiang” was just the Yangzi. The “su” in Suzhou is a type of wild grass.

A lot of these cities are translated “this state” or “that state”, so I’m thinking an American did this because “state” usually has a different meaning to non-Americans. “Zhou” originally meant “county” or “province” but now is usually just a suffix at the end of city names.

“Viet Nam” could be father south. That’s clever and I never thought of that. But typically it’s associated with an old word meaning “southern tribes”, like “southern southern tribes” basically.

Military Man should be “Martial Chinese”. The combination of two old city names that grew into each other.

The “shaan” in Shaanxi is the name of a particular ancient city, probably taken from the old name for a mountain, and doesn’t mean mountain pass.

Other than that seems pretty legit, although they make some weird choices.