The most important thing is,
the "North" direction is at the left side of the map, tis a get-used-to-it map layout used by japanese of any kind of serious discussion, showing how hard-working / dedicated japan views itself as a containment to the Asia continent, esp to China.
In this layout, you have to have the urgency feeling of "containment" - the asia continent, as if are going to "swallow" the tiny islands of Japan in a brink of eye. A VERY successful patriotic awareness / education material, in Japan's POV.
In surprise, this layout of map, being "informed" to China by visiting officials (from China to Japan), ALSO very successfully made patriotic awareness / education to Chinese masses (military fan or not), that China is not going anywhere when Japan wills it.
I would call this map "combat awareness map".