I am thinking that Mother Russia and perhaps Vietnam during the Vietnam War would be good maps. Also, we could do New York City, Korea(North or/and South), Paris France, the Roman Empire, Antartica, China, and possibly the Civil War and Revolutionary Wars.

Mother Russia, Vietnam (during the Vietnam War), New York City, the Carribbean Islands during the Pirate Era, the Civil War, the Revolutionary War, and many others

I am thinking that Mother Russia and perhaps Vietnam during the Vietnam War would be good maps.